Already posted:
https://f95zone.to/threads/lonarpg-v0-5-2-1-eccma417.49993/post-5548323
mosthra4123, you'll need to unpack the game first.
Grab the file attached and drop it into your LonaRPG directory.
File -> Open File -> Game.rgss3a
Tools -> Extract all files
Once the job is done, pull the Data and Graphics folders out of the Extract folder and drop them into the base directory.
Now delete the Extract folder and the rgss3a file.
Now just drop the data folder on top of the one you just pulled out.
Deleting the rgss3a file is vital. If left alone, it'll load the game using that, rendering the patch file inert.
EDIT: WHOOPS. Forgot to attach the decrypter for ease of finding.