ohio 2017 tax variance

[dnns_mddn]

Received a tax variance for 2017 Ohio taxes.  The outstanding item was Exemption Deduction.  Ohio says that my reported exemption was in error and was adjusted $500.  I can't fine the reported amount on a single line item  on either Federal or State forms.  Any idea why the difference. 

[Critter]

Call the number on the notice and ask the state to explain what they did.