Good morning Bonnie!
What version of AgExpert are you currently running?
If you are on version 2016-02 or earlier, then we ask that you please update your software - we have corrected some issues in the previous versions in regards to this error, and an update should fix it.
If you are on version 2016-03, then go to File > Rebuild, and run this feature on your file. Once the data file rebuild says it was successful, try to set up your account again - it should work this time!
I hope this helps you out!
