Fatal error: Uncaught Error: Class "OOUI\SearchInputWidget" not found in /home/floten1/q.tenbergen.ca/extensions/Math/src/Widget/WikibaseEntitySelector.php:7 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Math/src/Widget/WikibaseEntitySelector.php on line 7