Fatal error: Uncaught Error: Class 'Monolog\Handler\StreamHandler' not found in /home/devypfrfhn/corporation-https.fr/vendor/google/cloud/Core/src/Logger/AppEngineFlexHandler.php:28 Stack trace: #0 {main} thrown in /home/devypfrfhn/corporation-https.fr/vendor/google/cloud/Core/src/Logger/AppEngineFlexHandler.php on line 28