Afer finishing writing code, the error msg displayed as:
"There was an unexpected error in your org which is preventing this assessment check from completing: System.DmlException: Insert failed. First exception on row 0; first error: CANNOT_INSERT_UPDATE_ACTIVATE_ENTITY, AccountTrigger: execution of BeforeInsert caused by: System.SObjectException: DML statement cannot operate on trigger.new or trigger.old Class.AccountTriggerHandler.CreateAccounts: line 11, column 1 Trigger.AccountTrigger: line 3, column 1: ";
My code link is https://na112.salesforce.com/_ui/common/apex/debug/ApexCSIPage
What is it?