Fatal error: During inheritance of IteratorAggregate: Uncaught ArgumentCountError: Too few arguments to function default_error_handler(), 4 passed in /home/allameh3/lms.allamehellischool.ir/lib/navigationlib.php on line 897 and exactly 5 expected in /home/allameh3/lms.allamehellischool.ir/lib/setuplib.php:425 Stack trace: #0 /home/allameh3/lms.allamehellischool.ir/lib/navigationlib.php(897): default_error_handler(8192, 'Return type of ...', '/home/allameh3/...', 1142) #1 /home/allameh3/lms.allamehellischool.ir/lib/setup.php(610): require_once('/home/allameh3/...') #2 /home/allameh3/lms.allamehellischool.ir/config.php(27): require_once('/home/allameh3/...') #3 /home/allameh3/lms.allamehellischool.ir/index.php(28): require_once('/home/allameh3/...') #4 {main} in /home/allameh3/lms.allamehellischool.ir/lib/navigationlib.php on line 897