If this error occurs when you launch your game, here you go.

This tends to happen everytime the game receives a major update.

It is a simple problem to solve.
The only reason you'll be getting this error is that you installed a mod that was not updated to work with the most recent version of the game. Hence, why it says that your files may be corrupt. Because they are, in a way.

So how do I solve this problem?

The only way is to remove all mods that haven't been updated.

And in cast this wasn't clear, this is not a fault of the manager. So please stop reporting bugs of how the manager crashes your game. It can't.