Bro its just castling its not a big deal
chess.com not letting me castle
I have the same issue for 2 weeks. I am about give it up and quit chess.
https://support.chess.com/en/articles/8557430-how-do-i-castle
The bottom of the article explains the two available castling methods if that's where your having issues.
I have the same issue for 2 weeks. I am about give it up and quit chess.