VAULT+ NULLED MC PLUGIN [ConxeptWorks] Model Engine—Ultimate Custom Entity Model Manager [1.14-1.17.1] R2.3.1

There is no real 1.18 update. The plugin author just gave the new plugin to make Model Engine support 1.18. The only thing you have to do just download the R2.2.0 (1.18). Then put it to your plugin folder and restart your server, then you are done. Remember if you not 1.18 server or you not plan to update your server to 1.18. You don't have to download R2.2.0 (1.18), just use the R2.2.0.