unmesh59, this seems highly likely to me as well, as I e-filed both fed and state returns in mid-Feb with no issue. Helping my father in late Feb, e-filed both his fed and state no issue there either.
I don't know how to link other users posts with the same issue, so I'll list them by username. I've seen three different posts on the same topic.
Jane42 today at 12:42; jmannix3 today 16:13 and Newdye63 at 16:23
A 'solution' from TT which labels the issue as "solved" is found at https://ttlc.intuit.com/community/tax-topics/help/why-am-i-not-able-to-e-file-my-state-return-after-...
It does not really solve anything though. It directs you to sign up for an e-mail update when the issue has been solved.
Good luck,
