Fatal error: Uncaught Error: Interface 'Slim\Psr7\Interfaces\HeadersInterface' not found in /home/itscm/dev.its.cm/its_core_service/vendor/slim/psr7/src/Headers.php:29 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/its_core_service/vendor/slim/psr7/src/Headers.php on line 29