Fatal error: Uncaught Error: Class "core\output\chooser" not found in C:\Apache24\htdocs\moodle\question\bank\editquestion\classes\qbank_chooser.php:42 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\moodle\question\bank\editquestion\classes\qbank_chooser.php on line 42