Is there some setup needed on Zendesk to support a zendesk connected table

I have a vendor using Zendesk.  They provided me with a user id/pw.  I can connect to the Zendesk site without any issues.

However I have not been able to create a ZD Connected Table.  I get an error that says;
We couldn?t save your connection
Click sign in to try again
Internal Server Error
For input string: "114094152812"

I am not a ZD user/expert.  Can anyone tell me if there are settings that need to be made on the ZD side to get this working?

Thanks!