diff --git a/common_tools.py b/common_tools.py
index bbd1b2d..7650fae 100755
--- a/common_tools.py
+++ b/common_tools.py
@@ -15,7 +15,7 @@ import zipfile
 from datetime import datetime
 from pathlib import Path
 from tkinter import ttk, Toplevel
-from wp_app_config import AppConfig, Msg
+from wp_app_config import AppConfig, Msg, logging
 import requests
 
 # Translate
@@ -46,12 +46,14 @@ class CryptoUtil:
 
             # Output from Openssl Error
             if process.stderr:
-                print(process.stderr)
+                logging.error(process.stderr, exc_info=True)
 
             if process.returncode == 0:
-                print("Files successfully decrypted...")
+                logging.info("Files successfully decrypted...", exc_info=True)
             else:
-                print(f"Error process decrypt: Code {process.returncode}")
+                logging.error(
+                    f"Error process decrypt: Code {process.returncode}", exc_info=True
+                )
 
     @staticmethod
     def encrypt(user) -> None:
@@ -67,12 +69,14 @@ class CryptoUtil:
 
         # Output from Openssl Error
         if process.stderr:
-            print(process.stderr)
+            logging.error(process.stderr, exc_info=True)
 
         if process.returncode == 0:
-            print("Files successfully encrypted...")
+            logging.info("Files successfully encrypted...", exc_info=True)
         else:
-            print(f"Error process encrypt: Code {process.returncode}")
+            logging.error(
+                f"Error process encrypt: Code {process.returncode}", exc_info=True
+            )
 
     @staticmethod
     def find_key(key: str = "") -> bool:
@@ -90,8 +94,9 @@ class CryptoUtil:
             return True
         elif "False" in process.stdout:
             return False
-        print(
-            f"Unexpected output from the external script:\nSTDOUT: {process.stdout}\nSTDERR: {process.stderr}"
+        logging.error(
+            f"Unexpected output from the external script:\nSTDOUT: {process.stdout}\nSTDERR: {process.stderr}",
+            exc_info=True,
         )
         return False
 
@@ -310,13 +315,13 @@ class LxTools:
         msg.title(w_title)
         msg.configure(pady=15, padx=15)
 
-        # Lade das erste Bild für das Fenster
+        # load first image for window
         try:
             msg.img = tk.PhotoImage(file=image_path)
             msg.i_window = tk.Label(msg, image=msg.img)
         except Exception as e:
-            print(f"Fehler beim Laden des Fensterbildes: {e}")
-            msg.i_window = tk.Label(msg, text="Bild nicht gefunden")
+            logging.error(f"Error on load Window Image: {e}", exc_info=True)
+            msg.i_window = tk.Label(msg, text="Image not found")
 
         label: tk.Label = tk.Label(msg, text=w_txt)
         label.grid(column=1, row=0)
@@ -340,12 +345,11 @@ class LxTools:
             )
             button.grid(column=0, columnspan=2, row=1)
 
-        # Lade das Icon für das Fenster
         try:
             icon = tk.PhotoImage(file=image_path2)
             msg.iconphoto(True, icon)
         except Exception as e:
-            print(f"Fehler beim Laden des Fenstericons: {e}")
+            logging.error(f"Error loading the window icon: {e}", exc_info=True)
 
         msg.columnconfigure(0, weight=1)
         msg.rowconfigure(0, weight=1)
@@ -385,16 +389,17 @@ class LxTools:
             # End program for certain signals, report to others only reception
             if signum in (signal.SIGINT, signal.SIGTERM):
                 exit_code: int = 1
-                print(
-                    f"\nSignal {signal_name} {signum} received. => Aborting with exit code {exit_code}."
+                logging.error(
+                    f"\nSignal {signal_name} {signum} received. => Aborting with exit code {exit_code}.",
+                    exc_info=True,
                 )
                 LxTools.clean_files(file_path, file)
-                print("Breakdown by user...")
+                logging.info("Breakdown by user...")
                 sys.exit(exit_code)
             else:
-                print(f"Signal {signum} received and ignored.")
+                logging.info(f"Signal {signum} received and ignored.")
                 LxTools.clean_files(file_path, file)
-                print("Process unexpectedly ended...")
+                logging.error("Process unexpectedly ended...")
 
         # Register signal handlers for various signals
         signal.signal(signal.SIGINT, signal_handler)
@@ -464,7 +469,10 @@ class Tunnel:
         elif directory is not None:
 
             if not directory.exists() or not directory.is_dir():
-                print("Temp directory does not exist or is not a directory.")
+                logging.error(
+                    "Temp directory does not exist or is not a directory.",
+                    exc_info=True,
+                )
                 return None
 
             # Get a list of all files in the directory
diff --git a/ssl_decrypt.py b/ssl_decrypt.py
index 0439c79..4ce87c2 100755
--- a/ssl_decrypt.py
+++ b/ssl_decrypt.py
@@ -5,7 +5,7 @@ from pathlib import Path
 import pwd
 import shutil
 from subprocess import CompletedProcess, run
-from wp_app_config import AppConfig
+from wp_app_config import AppConfig, logging
 
 parser = argparse.ArgumentParser()
 parser.add_argument("--user", required=True, help="Username of the target file system")
@@ -17,7 +17,7 @@ try:
     uid = user_info.pw_uid  # User ID (e.g., 1000)
     gid = user_info.pw_gid  # Group ID (e.g., 1000)
 except KeyError:
-    print(f"User '{args.user}' not found.")
+    logging.error(f"User '{args.user}' not found.", exc_info=True)
     exit(1)
 
 keyfile: Path = Path(f"/home/{args.user}/.config/wire_py/pbwgk.pem")
@@ -40,11 +40,13 @@ if not keyfile.is_file():
         text=True,
         check=False,
     )
-    print(process.stdout)
+
     if process.returncode == 0:
-        print("Public key generated successfully.")
+        logging.info("Public key generated successfully.", exc_info=True)
     else:
-        print(f"Error with the following code... {process.returncode}")
+        logging.error(
+            f"Error with the following code... {process.returncode}", exc_info=True
+        )
     shutil.chown(keyfile, uid, gid)
 
 if AppConfig.PUBLICKEY.exists():
@@ -72,16 +74,11 @@ if AppConfig.PUBLICKEY.exists():
             check=False,
         )
         shutil.chown(f"{AppConfig.TEMP_DIR}/{base_name}.conf", uid, gid)
-        print(f"Processing of the file: {tunnel_path}")
-
-        if process.stdout:
-            print(process.stdout)
+        logging.info(f"Processing of the file: {tunnel_path}", exc_info=True)
 
         # Output from Openssl Error
         if process.stderr:
-            print("(Error):", process.stderr)
-
-        if process.returncode == 0:
-            print(f"File {base_name}.dat successfully decrypted.")
-        else:
-            print(f"Error by {tunnel_path}: Code: {process.returncode}")
+            logging.error(
+                f"{process.stderr} Error by [{tunnel_path}] Code: {process.returncode}",
+                exc_info=True,
+            )
diff --git a/ssl_encrypt.py b/ssl_encrypt.py
index 537572b..191e0a2 100755
--- a/ssl_encrypt.py
+++ b/ssl_encrypt.py
@@ -2,11 +2,12 @@
 """ This Script encrypt Wireguardfiles for Wirepy users for more Security """
 
 import argparse
+import logging
 from pathlib import Path
 import pwd
 import shutil
 from subprocess import CompletedProcess, run
-from wp_app_config import AppConfig
+from wp_app_config import AppConfig, logging
 
 parser = argparse.ArgumentParser()
 parser.add_argument("--user", required=True, help="Username of the target file system")
@@ -18,7 +19,7 @@ try:
     uid = user_info.pw_uid  # User ID (e.g., 1000)
     gid = user_info.pw_gid  # Group ID (e.g., 1000)
 except KeyError:
-    print(f"User '{args.user}' not found.")
+    logging.error(f"User '{args.user}' not found.", exc_info=True)
     exit(1)
 
 keyfile: Path = Path(f"/home/{args.user}/.config/wire_py/pbwgk.pem")
@@ -44,17 +45,12 @@ if not keyfile.is_file():
         check=False,
     )
 
-    if process.stdout:
-        print(process.stdout)
-
     # Output from Openssl Error
     if process.stderr:
-        print("(Error):", process.stderr)
+        logging.error(f"{process.stderr} Code: {process.returncode}", exc_info=True)
 
     if process.returncode == 0:
-        print("Public key generated successfully.")
-    else:
-        print(f"Error generate Publickey: Code: {process.returncode}")
+        logging.info("Public key generated successfully.", exc_info=True)
 
     shutil.chown(keyfile, uid, gid)
 
@@ -82,13 +78,6 @@ if AppConfig.TEMP_DIR.exists() and any(AppConfig.TEMP_DIR.iterdir()):
             check=False,
         )
 
-        print(f"Processing of the file: {config_file}")
-
         # Output from Openssl Error
         if process.stderr:
-            print("(Error):", process.stderr)
-
-        if process.returncode == 0:
-            print(f"File {base_name}.dat successfully encrypted.")
-        else:
-            print(f"Error by {config_file}: Code: {process.returncode}")
+            logging.error(process.stderr, exc_info=True)
diff --git a/start_wg.py b/start_wg.py
index e4a755d..7583eec 100755
--- a/start_wg.py
+++ b/start_wg.py
@@ -4,7 +4,7 @@
 """
 
 from subprocess import CompletedProcess, run
-from wp_app_config import AppConfig
+from wp_app_config import AppConfig, logging
 from common_tools import ConfigManager
 
 ConfigManager.init(AppConfig.SETTINGS_FILE)
@@ -18,7 +18,7 @@ if ConfigManager.get("autostart") != "off":
     )
     # Output from start_wg error
     if process.stderr:
-        print(process.stderr)  # this is for the error, later on logfile
+        logging.error(process.stderr, exc_info=True)
 
 else:
     pass
diff --git a/wirepy.py b/wirepy.py
index 4071ad2..bbacf24 100755
--- a/wirepy.py
+++ b/wirepy.py
@@ -5,7 +5,6 @@ this script is a simple GUI for managing Wireguard Tunnels
 
 import getpass
 import shutil
-import subprocess
 import sys
 import tkinter as tk
 import webbrowser
@@ -22,7 +21,7 @@ from common_tools import (
     Tooltip,
     LxTools,
 )
-from wp_app_config import AppConfig, Msg
+from wp_app_config import AppConfig, Msg, logging
 
 AppConfig.ensure_directories()
 AppConfig.create_default_settings()
@@ -522,7 +521,7 @@ class FrameWidgets(ttk.Frame):
                 # Now update the UI with the fresh result
                 self.update_ui_for_update(res)
             except Exception as e:
-                print(f"Error checking for updates: {e}")
+                logging.error(f"Error checking for updates: {e}", exc_info=True)
                 # Fallback to a default message if there's an error
                 self.update_ui_for_update("No Internet Connection!")
 
@@ -663,7 +662,6 @@ class FrameWidgets(ttk.Frame):
                     Msg.STR["invalid_base64"],
                 )
             else:
-                print("Key is valid and does not exist – import allowed!")
                 filepath = Path(filepath)
                 # Shorten the tunnel name to the maximum allowed length if it exceeds 12 characters.
                 original_name = filepath.name
@@ -687,10 +685,8 @@ class FrameWidgets(ttk.Frame):
                     )
 
                     if process.stderr:
-                        print(process.stderr)
+                        logging.error(f"{process.stderr}: Code {process.returncode}")
 
-                    else:
-                        print(f"Error process decrypt: Code {process.returncode}")
                     self.reset_fields()
 
                 process: CompletedProcess[str] = run(
@@ -709,12 +705,9 @@ class FrameWidgets(ttk.Frame):
                 )
 
                 if process.stderr:
-                    print(process.stderr)
-
-                if process.returncode == 0:
-                    print(f"Tunnel >> {import_file.stem} << import successfull")
-                else:
-                    print(f"Error process decrypt: Code {process.returncode}")
+                    logging.error(
+                        f"{process.stderr} Code: {process.returncode}", exc_info=True
+                    )
 
                 CryptoUtil.encrypt(getpass.getuser())
                 LxTools.clean_files(AppConfig.TEMP_DIR, file=None)
@@ -753,7 +746,7 @@ class FrameWidgets(ttk.Frame):
                 )
 
                 if process.stderr:
-                    print(process.stderr)
+                    logging.error(process.stderr, exc_info=True)
 
                 if process.returncode == 0:
                     print(f">> {import_file.stem} << autostart is disabled by default")
@@ -773,8 +766,6 @@ class FrameWidgets(ttk.Frame):
             print("File import: abort by user...")
         except FileNotFoundError:
             print("File import: abort by user...")
-        except subprocess.CalledProcessError:
-            print("Tunnel exist!")
 
     def delete(self) -> None:
         """
@@ -792,12 +783,9 @@ class FrameWidgets(ttk.Frame):
             )
 
             if process.stderr:
-                print(process.stderr)
-
-            if process.returncode == 0:
-                print(f"Tunnel >> {select_tl} << successfully deleted...")
-            else:
-                print(f"Error process: Code {process.returncode}")
+                logging.error(
+                    f"{process.stderr} Code: {process.returncode}", exc_info=True
+                )
 
             self.l_box.delete(self.select_tunnel[0])
             Path.unlink(f"{AppConfig.CONFIG_DIR}/{select_tl}.dat")
@@ -871,9 +859,6 @@ class FrameWidgets(ttk.Frame):
         """
 
         if ConfigManager.get("autostart") != "off":
-            print(
-                f"{ConfigManager.get("autostart")} starts automatically when the system starts."
-            )
             self.selected_option.set(1)
             self.autoconnect_var.set("")
             self.auto_con = ConfigManager.get("autostart")
@@ -992,10 +977,9 @@ class FrameWidgets(ttk.Frame):
                     check=False,
                 )
                 if process.stderr:
-                    print(process.stderr)
-
-                if process.returncode != 0:
-                    print(f"Error process: Code {process.returncode}")
+                    logging.error(
+                        f"{process.stderr} Code: {process.returncode}", exc_info=True
+                    )
 
                 source = Path(f"{AppConfig.CONFIG_DIR}/{select_tl}.dat")
                 destination = AppConfig.CONFIG_DIR / f"{self.lb_rename.get()}.dat"
@@ -1019,11 +1003,8 @@ class FrameWidgets(ttk.Frame):
                     Msg.STR["sel_list"],
                 )
 
-            except subprocess.CalledProcessError:
-                pass
-
             except EOFError as e:
-                print(e)
+                logging.error(e, exc_info=True)
 
     def handle_tunnel_data(self, active=None, data=None) -> None:
         """Processes tunnel data from an active connection and updates
@@ -1127,10 +1108,9 @@ class FrameWidgets(ttk.Frame):
                 )
 
                 if process.stderr:
-                    print(process.stderr)
-
-                if process.returncode != 0:
-                    print(f"Error process: Code {process.returncode}")
+                    logging.error(
+                        f"{process.stderr} Code: {process.returncode}", exc_info=True
+                    )
 
                 self.update_connection_display()
                 self.reset_fields()
@@ -1147,12 +1127,9 @@ class FrameWidgets(ttk.Frame):
                 )
 
                 if process.stderr:
-                    print(process.stderr)
-
-                if process.returncode == 0:
-                    print(f"Tunnel >> {target_tunnel} << started")
-                else:
-                    print(f"Error process: Code {process.returncode}")
+                    logging.error(
+                        f"{process.stderr} Code: {process.returncode}", exc_info=True
+                    )
 
                 self.update_connection_display()
                 self.handle_tunnel_data(self.a, self.tl)
diff --git a/wp_app_config.py b/wp_app_config.py
index 7719a11..9f88244 100644
--- a/wp_app_config.py
+++ b/wp_app_config.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python3
 """App configuration for Wire-Py"""
-
+import logging
 import gettext
 import locale
 from pathlib import Path
@@ -28,6 +28,17 @@ class AppConfig:
     consistently and perform system-level setup tasks.
     """
 
+    # Logging
+    LOG_DIR = Path.home() / ".local/share/wirepy"
+    Path(LOG_DIR).mkdir(parents=True, exist_ok=True)
+    LOG_FILE_PATH = LOG_DIR / "wirepy.log"
+
+    logging.basicConfig(
+        filename=f"{LOG_FILE_PATH}",
+        level=logging.ERROR,
+        format="%(asctime)s - %(levelname)s - %(message)s",
+    )
+
     # Localization
     APP_NAME: str = "wirepy"
     LOCALE_DIR: Path = Path("/usr/share/locale/")
@@ -145,11 +156,9 @@ class AppConfig:
             text=True,
             check=False,
         )
-        print(process.stdout)
-        if process.returncode == 0:
-            print(process.stdout)
-        else:
-            print(f"Error with the following code... {process.returncode}")
+
+        if process.stderr:
+            logging.error(f"{process.stderr} Code: {process.returncode}", exc_info=True)
 
 
 # here is inizialize the class for translate strrings