Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Language::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in C:\xampp\htdocs\includes\classes\Language.class.php:165 Stack trace: #0 C:\xampp\htdocs\includes\classes\Language.class.php(18): errorHandler(8192, 'Return type of ...', 'C:\xampp\htdocs...', 165) #1 C:\xampp\htdocs\includes\common.php(61): require('C:\xampp\htdocs...') #2 C:\xampp\htdocs\index.php(24): require('C:\xampp\htdocs...') #3 {main} in C:\xampp\htdocs\includes\classes\Language.class.php on line 18 
