Unity FatalCrashError with Rain

I'm trying to use the newest version of Rain (2.1.3) from the official Website. Well, It worked yesterday, but today it keeps giving an error, saying that MemoryStream is corrupted please delete this file and try again, and It gives me a whole bunch of Functions inside one of the Core rain files, these are all encrypted and I can't fix it. I've tried reinstalling, but it didn't help , attached is a Screenshot of the error.