Fatal error: Uncaught Error: Class "Psr\Log\AbstractLogger" not found in /disk/www/jkdev.zo/Git-Package-Management/core/components/gpm/vendor/psr/log/Psr/Log/NullLogger.php:13 Stack trace: #0 {main} thrown in /disk/www/jkdev.zo/Git-Package-Management/core/components/gpm/vendor/psr/log/Psr/Log/NullLogger.php on line 13