Fatal error: Uncaught Error: Class "setasign\Fpdi\Tcpdf\Fpdi" not found in C:\Apache24\htdocs\cms_upgrade\vendor\setasign\fpdi\src\TcpdfFpdi.php:20
Stack trace:
#0 {main}
thrown in C:\Apache24\htdocs\cms_upgrade\vendor\setasign\fpdi\src\TcpdfFpdi.php on line 20