My switch was recently banned, which isn't an issue for me since I don't play online, however something happened where my physical copy of pokemon violet was either corrupted due to a console update or the game was mid update and my switch reset itself.

When I try to open the game it tells me to connect to the internet to verify the game files for missing data. Since my switch is banned I am unable to connect to the internet in the first place. My question is how would I go about fixing this issue, assuming the game card or save file is affected.