To have a "better" experience with Ryuugames, keep on your clipboard and ensure your WinRAR or 7-Zip is fully updated . These two steps solve nearly every issue reported by the community.

Some browsers or download managers can accidentally strip data from files during transfer. Wrapping them in a password-protected RAR or ZIP file ensures the integrity of the data remains intact. A "Better" Way to Extract: Use 7-Zip or WinRAR

As mentioned, trying to open a modern .rar file with a version of WinRAR from 2015 will almost always result in a "Wrong Password" error.