Fatal error: Uncaught Error: Class "TextContent" not found in /home/floten1/q.tenbergen.ca/extensions/FlexDiagrams/includes/FD_DrawioContent.php:8 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/FlexDiagrams/includes/FD_DrawioContent.php on line 8