Fatal error: Uncaught Error: Class "base_logger" not found in C:\xampp\htdocs\laberit01\html\moodle\backup\util\loggers\core_backup_html_logger.class.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\laberit01\html\moodle\backup\util\loggers\core_backup_html_logger.class.php on line 24