Fatal error: Uncaught Error: Interface 'ProxyManager\Signature\ClassSignatureGeneratorInterface' not found in /home/soh-works/www/Stepup_test/vendor/ocramius/proxy-manager/src/ProxyManager/Signature/ClassSignatureGenerator.php:16 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/ocramius/proxy-manager/src/ProxyManager/Signature/ClassSignatureGenerator.php on line 16