You can't use the online version of any software now for a 2018 return or file it electronically. You will need to buy the 2018 software or look on the IRS site for forms for the tax year 2018.
Fill out your information and send it in. It will take a little longer but you should receive you refund without any problems. https://turbotax.intuit.com/personal-taxes/past-years-products/ https://www.irs.gov/forms-pubs/prior-year
https://www.irs.gov/newsroom/tax-time-guide-check-refund-status-online-with-wheres-my-refund
Disclaimer: Not a tax professional. Information gathered from internet links. Anything dated in June 2019 was posted in prior years and is before the 2019 limits and changes.
