Fatal error: Uncaught Error: Interface "Composer\Plugin\PluginInterface" not found in /home/net1/social.net1.club/vendor/ocramius/package-versions/src/PackageVersions/Installer.php:32 Stack trace: #0 {main} thrown in /home/net1/social.net1.club/vendor/ocramius/package-versions/src/PackageVersions/Installer.php on line 32