when I try to load a map on plutonium it boots into the mod but doesn't actually show me the UI to launch the map. for example for the fortress mod it has a custom start menu and allows me to play the map, but with plutonium it doesn't allow me to boot the map or anything. thats my first issue.
Also when loading a map called pietercity i get this error message
i may be stupid but can you just not play some mods on plutonium?