@Eck3
Maybe it's an erroneous error notice..........
BUT
NO ONE can e-file (nor paper file) MN taxes yet.
The forms , and e-filing, ANY MN tax returns is not expected to be available, in the TTX software, until AFTER 23 January.
See: Intuit App
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Probably, that's a good thing. Many people get more tax documents later in January that they "forgot" about......Interest, dividends, a short-term job from early in the eyar...(sometimes they even show up in early February) .
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*