what state? what year?
if you e-filed , you should have gotten an acceptance or a rejection e-mail. if rejected there will be a code. if you provide it maybe we can help.
2017 and prior can no longer be e-filed
if you mailed return, did you use a method where you got proof of delivery. It's possible the state never got it. Once had a taxpayer come in when he had problems with his state return. showed me where he sent. The stare's DMV not DOR
2014 programs no longer available and even if you were to reinstall, updates are not available.
contact support regarding issues with reinstalling for 2015 or later.