Fatal error: During inheritance of IteratorAggregate: Uncaught ArgumentCountError: Too few arguments to function default_error_handler(), 4 passed in /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/lib/navigationlib.php on line 897 and exactly 5 expected in /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/lib/setuplib.php:421 Stack trace: #0 /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/lib/navigationlib.php(897): default_error_handler(8192, 'Return type of ...', '/data/4/b/4b5c2...', 1142) #1 /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/lib/setup.php(599): require_once('/data/4/b/4b5c2...') #2 /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/config.php(27): require_once('/data/4/b/4b5c2...') #3 /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/index.php(30): require_once('/data/4/b/4b5c2...') #4 {main} in /data/4/b/4b5c24c3-37a6-4d83-b52d-cca714072e64/chemickaolympiada.sk/web/moodle/lib/navigationlib.php on line 897