diff --git a/Logger.php b/Logger.php
index 684cd88..6e5cde2 100644
--- a/Logger.php
+++ b/Logger.php
@@ -20,6 +20,15 @@
 class Logger
 {
 
+    /**
+     * Prüft, ob das Skript in der CLI läuft
+     * @return bool
+     */
+    protected static function isCLI()
+    {
+        return PHP_SAPI === 'cli';
+    }
+
     /**
      * $log_file - path and log file name
      * @var string
@@ -295,19 +304,17 @@ class Logger
     }
 
     /**
-     * Convert absolute path to relative url (using UNIX directory seperators)
-     * 
-     * E.g.:
-     *      Input:      D:\development\htdocs\public\todo-list\index.php
-     *      Output:     localhost/todo-list/index.php
-     * 
-     * @param string Absolute directory/path of file which should be converted to a relative (url) path
-     * @return string Relative path
+     * Konvertiert einen absoluten Pfad in einen relativen (unter Berücksichtigung von CLI)
      */
     public static function absToRelPath($pathToConvert)
     {
+        if (static::isCLI()) {
+            return $pathToConvert; // In CLI einfach den absoluten Pfad zurückgeben
+        }
+
         $pathAbs = str_replace(['/', '\\'], '/', $pathToConvert);
-        $documentRoot = str_replace(['/', '\\'], '/', $_SERVER['DOCUMENT_ROOT']);
+        $documentRoot = str_replace(['/', '\\'], '/', $_SERVER['DOCUMENT_ROOT'] ?? '');
+        
         return $_SERVER['SERVER_NAME'] . str_replace($documentRoot, '', $pathAbs);
     }
 
@@ -346,4 +353,5 @@ class Logger
      */
     private function __destruct()
     { }
-}
\ No newline at end of file
+}
+ 
\ No newline at end of file