Hey Multiverse portal doesn't work for me for some reason. The server is on 1.8.8, in Multiverse-Portal there's no version called 1.8.8 with several plugins. But still: "1.8.1" or "CB 1.7.2-R0.2" should actually work. But somehow not a single one works. When I install 1.8.1 (Multiverse portal) nothing is displayed, only the command in the console and nothing at all after entering the command in Minecraft. With 1.7.2-R0.2 this is displayed as the wrong version. Does anyone know anything about it?
With / plugins or / pl you should be able to check which plugins are on your server. If yours is not there, it means that the server has not recognized the plugin (you should really switch the server off and on again beforehand).