Fatal error: Uncaught Error: Class 'FPDF' not found in /home/app/htdocs/ninja/vendor/setasign/fpdi/fpdi_bridge.php:23 Stack trace: #0 /home/app/htdocs/ninja/vendor/setasign/fpdi/fpdf_tpl.php(12): require_once() #1 {main} thrown in /home/app/htdocs/ninja/vendor/setasign/fpdi/fpdi_bridge.php on line 23