Error while duplicating Records

Error while duplicating Records

In my app one of my forms gives me this error when trying to duplicate a record:

"Error while duplicating records". 

All of my permissions are correct in the app for allowing duplication and even as the app owner I cannot. As additional information this form has a subform associated with it and does a lookup to my zoho crm onLoad. These are more sophisticated elements and I wonder if they are causing this error. Other forms duplicate records fine. Please advise.