Fatal error: Uncaught Error: Class 'JsonMapper' not found in /home/devosm/SiteCompilerProcessFiles/plugins/Square/vendor/apimatic/jsonmapper/example/run.php:8 Stack trace: #0 {main} thrown in /home/devosm/SiteCompilerProcessFiles/plugins/Square/vendor/apimatic/jsonmapper/example/run.php on line 8