OperationalError

I have a Django application that I am having problems with.  In the Admin page I have 3 sections, ABC, DEF & XYZ. Each has 1 option to "Add/Change".  In 2 of them when I click on the option it works fine. The third gives me the following error "

1054, "Unknown column 'xyz_xyz.first_name' in "field list"

The Exception location is: /home/medrec1/.virtualenvs/medrecproj/lib/python3.5/site-packages/MySQLdb/connections.py in query, 
line 277

On another system (both running the same code) I was also getting a different error also in site-packages/MySQLdb but I was
able correct that by installing 2 DEV packages and then installing MySQLClient, which I also did on this computer.  The other
system does NOT give this error.

Any ideas, suggestions, solutions on how to solve this error and any other errors in the Django code?

Thanks.

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