What potential issue is causing the "stat failed for Dateiname" warning in the script?

The "stat failed for Dateiname" warning indicates that the script is unable to retrieve information about a file due to permission or file path issues. To solve this, you can check if the file exists and if the script has the necessary permissions to access it.

// Check if the file exists and if the script has permission to access it
$filename = 'Dateiname';
if (file_exists($filename) && is_readable($filename)) {
    // Proceed with accessing the file
    $file_info = stat($filename);
    // Additional code to handle the file information
} else {
    echo "File does not exist or script does not have permission to access it.";
}