Pokemon Crystal File Corrupted My Pokemon Crystal Version Got The File Corrupt! IDK HOW THO!!! ?

My Pokemon Crystal Version got the file corrupt! IDK HOW THO!!! ? - pokemon crystal file corrupted

I have to show my friend my Pokemon, and said it was damaged! Is there a way to solve this problem? I badly need to correct! I have all my best pokemon there! I mewtwo, mew, 3 birds, and all other legends, but I can play! What should I do? Only serious answers. Oh, and if asked why I continue to play, I do. The fact that I have more than 200 Pokemon, which means he has no further cause. I just wanted to OT was once filled in the life ... lolz. But I need a malfunction ... It brings back memories of my childhood ... or at least the only property was ... lolz