Example Full Error Message: 
Error while creating new document. Error message: Error calling merge
service. Error: “Error:Exception: We’re sorry, a server error occurred.
Please wait a bit and try again. \tat MergeValuesService (A5 Documents
v3.05):101 (replaceTitle)\n\tat MergeValuesService (A5 Documents v3.05):59
(mergeValues)\n\tat RouterService (A5 Documents v3.05):8 (doGet)\n”

-You may get this error message if there is an issue with the google drive server. The issue should resolve itself, just wait at least 30 minutes and then try again.