Why are we getting this error when trying to open some MXD files?
Myself and another coworker are getting this same error when opening several MXDs (see Error Message 1 below). We have all verified we are on ArcMap 10.4.1. The person who created the MXD also verified they are on 10.4.1 (usually there is no problem opening other MXDs she creates). This is only happening to 2 out of 5 people in the office. This error is also different than the normal error message regarding opening an MXD saved with a newer version (see Error Message 2 below for the normal error message).
Edit: Per response to original question I tried MXD doctor on the original and a copy on the server. I also backed up to local machine and tried it on that. All attempts resulted in the same error message below.