I hate to be that guy, but this addon only works on 1.20 and 1.21. But the actual plugin the addon is for only works on 1.18 and 1.19. I've tested the plugins together on 1.21/1.20 and the PlatinumAreas dousn't work then. And when I try it on 1.19 the actual ArenaReset plugin dousn't work.

If you make the plugin 1.18 / 1.19 compatible I would change it to 4 stars (If the plugin actually works ofcourse)