Fatal error: During inheritance of IteratorAggregate: Uncaught ArgumentCountError: Too few arguments to function default_error_handler(), 4 passed in /htdocs/elearning/lib/navigationlib.php on line 897 and exactly 5 expected in /htdocs/elearning/lib/setuplib.php:425 Stack trace: #0 /htdocs/elearning/lib/navigationlib.php(897): default_error_handler(8192, 'Return type of ...', '/htdocs/elearni...', 1142) #1 /htdocs/elearning/lib/setup.php(610): require_once('/htdocs/elearni...') #2 /htdocs/elearning/config.php(1002): require_once('/htdocs/elearni...') #3 /htdocs/elearning/index.php(30): require_once('/htdocs/elearni...') #4 {main} in /htdocs/elearning/lib/navigationlib.php on line 897