Invalid Column Name Exception on Entity Framework

While using Entity Framework and creating my unit tests on most tables, a very peculiar error has occurred on one of them. While adding an entry to the table "Users", I get the error that there is an Invalid Column Name "Setup_Pk". But here's the thing, that field is not specified anywhere in the code. I searched the entire solution and that field was not mentioned anywhere. I accessed the database and the field is also not there on the table "Users". I've already made a few unit tests to other tables, but this one is the only one up to now to have given me this sort of error on a field that I cannot seem to find anywhere. I'd like to know if there is someway I can fix this or if there is something else that I need to check.

Regards