Corrupted file

Hey!

For a couple of days, my file has been saying that it's corrupted and there's some errors with extra beats in some measures. I tried going in by hand and fixing all of them, I tried switching back and forth between voices 1 and 2, I even found a plugin I'm not sure did much. All that stuff fixed my audio and I was able to knock off some measures from the error list, but there's some that just won't go away. Could anyone help plz?