Fatal error: Uncaught Error: Class "Sabre\DAV\Exception" not found in /home/ternalis/agenda/vendor/sabre/dav/lib/DAV/Exception/PaymentRequired.php:19 Stack trace: #0 {main} thrown in /home/ternalis/agenda/vendor/sabre/dav/lib/DAV/Exception/PaymentRequired.php on line 19