Fatal error: Uncaught Error: Class "core_question\local\bank\row_base" not found in C:\Apache24\htdocs\moodle\question\bank\viewquestiontext\classes\question_text_row.php:31 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\moodle\question\bank\viewquestiontext\classes\question_text_row.php on line 31