Fatal error: Uncaught Error: Class "Twilio\ListResource" not found in /home/fortebku/smtp-mail/vendor/twilio/sdk/src/Twilio/Rest/Serverless/V1/Service/Environment/VariableList.php:31 Stack trace: #0 {main} thrown in /home/fortebku/smtp-mail/vendor/twilio/sdk/src/Twilio/Rest/Serverless/V1/Service/Environment/VariableList.php on line 31