So, basically, I tried to get onto SevTech - Ages modpack, though I got an error message which said the launcher didn't recognize jna-4.4.0.jar file, I looked up and replaced the file with the manual downloaded one, I tried to run it, but it created another file and still showed me the error.  What should I do? Error mesage;   Failed to download file, the file contents differ from what was expected. Name: jna-4.4.0.jar URL: https://libraries.minecraft.net/net/java/dev/jna/jna/4.4.0/j