Can I file an amended state return for Ohio if my agi changed due to the $10,200 ue tax?

You may need to amend the Ohio return ... read 1 & 2 on this page :   https://tax.ohio.gov/wps/portal/gov/tax/help-center/resources/coronavirus

See this TurboTax support FAQ for amending a state tax return - https://ttlc.intuit.com/community/amending/help/i-need-to-amend-my-state-return/01/26510