OData Version: 3 and 4 Error: The remote server returned an error: (500) Internal Server Error

Hi Anonymous ,

The first thing to do is to confirm that everything is up to date and so please make sure that your Desktop and Gateway are both updated.  That will eliminate at least one level of potential area of what might be happening to cause this issue.

After that, confirm that you ahve the right data connection (SharePoint List instead of Web or vice-versa)  You will want the most "specific" connector rather than a more "generic" one.  

This link also runs thorugh two or three examples of what this might be:

The remote server returned an error: (500) Interna... - Microsoft Power BI Community