It is recommended to manually download full package because it is faster and can be reuse when you need to reinstall again.
Require additional assistance? You can ask our support just about anything and they will do their best to help you.
This is an Old Style way back 2004 nostalgic Ragnarok game, It's definitely non-monitized, pure grinding and farming server that focus on PRE-TRANS play style.
Download the file and paste at ClassicRO folder replacing the existing file.
If you wish to revert back to original, then you can just delete the file.