The scenario is, I am Creating a Case record type and then getting this error. When I am doing this I am logged in as a user from the profile which has access to Create, Read and Edit this specific case record type.
I have created an assignment rule and every time this case record is created it is supposed to send out an email notification to the Queue Members. This email notification is sent out every time the case is created as a Salesforce Admin to the QUEUE MEMBERS but when I try to create a case record as this profile user gets this error.
How do I investigate this error in the debug logs in the Developer Console? I am a newbie into Salesforce Development.