Games using the RPG Maker engine require RTP packages to be installed.
Everything you need for these games can be downloaded here:
Different games may require a specific package. It all depends on the developer and what version of the RPG Maker engine he used to make this game.
If there is no mention of the required RPG RTP in the description, then look in the game's "readme" file or in the ini file.
The simplest method is to install all the packages and forget about them.
Warning - Adult content
Are you 18 years old or older?
