Very lag and some times can't connect my xbox accont

I used the pirated minecraft, but I already intended to buy it, but while I didn't, I played pirate but when I upgraded to 1.16.20 (pirate) I entered the xbox live account and went into a world to play with my friends. that your microsoft account was disconnected this was common in my account so I just had to leave and enter it, but when I tried to enter it gave me an error I uninstalled it and then nothing went ahead with the purchase process and it was good but today the error came back but I left the game and I came back and it was resolved, fix this. And the game has a little bit more lag even when playing offline in 1.16.10 it wasn't like that