Fatal error: Uncaught Error: Class "FPDF" not found in /home/ldt/public_html/canvas/udoit/vendor/setasign/fpdi/src/FpdfTpl.php:18 Stack trace: #0 {main} thrown in /home/ldt/public_html/canvas/udoit/vendor/setasign/fpdi/src/FpdfTpl.php on line 18