Fatal error: Uncaught Error: Class "Illuminate\Support\Str" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendor/srmklive/paypal/src/Services/Str.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendor/srmklive/paypal/src/Services/Str.php on line 7