Fatal error: Uncaught Error: Class "Doctrine\Migrations\AbstractMigration" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/core/backend/Migrations/Version20200608135040.php:37 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/core/backend/Migrations/Version20200608135040.php on line 37