This article only applies when your Kerbal Space Program game server is hosted using the Dark Multiplayer Mod (DMP), this is the default setup when ordering here. We do also support Luna Multiplayer instead, please contact us if you'd like to switch to this. (there may-be extra charge)

When this is shown in-game, it means that the part is not in the DMPModControl file on the server. It can happen when a new part is added to the mod, which makes the file outdated, or if the mods havent been seutp correctly. Please re-do the mod setup instructions here.
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