Fatal error: Uncaught Error: Class "Sabre\DAV\PropertyStorage\Backend\AbstractPDOTest" not found in /var/www/illumine/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOMysqlTest.php:5
Stack trace:
#0 {main}
thrown in /var/www/illumine/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOMysqlTest.php on line 5