Cheat Engine

[Dodish]

Hello,
I'm working on hacking a Unity3D game, I want to edit some functions of it and I found where to edit them and done this through the CSharp.dll file.
However, the game checks if the file is changed and either replaces it with the correct file or if I passed this, the game doesn't load because the file is corrupted.
How can I manage the part where the game loads the file? And probably edit the file hash it's looking for.

[STN]

Which game is it?

[Dodish]

The game is called Touch.