@WhyEvenTry?, I had similar problems not so long ago when I updated to version 4.x.x, and I had wallets that were created with versions 3.x.x - although I must mention that it was the version for Android. At that time, I solved that problem by going back to the old version and emptying the old wallets.

Can you write which version of Electrum you use, is it a desktop or mobile version and do you have your seed stored safely?

It would be better if you move your topic to -> https://bitcointalk.org/index.php?board=98.0