Hi, we use this mod together whit the Satisfactory Mod. cars work fine, but there are Hypertubes(like in the original Game) and i thiink they are "cars" in some way so a player can enter it. And u can use the carkeys on it. first time u own the tube (LOL) second time the server crashes.

Error while running event GCKI::on_built_entity (ID 6)
GCKI/control.lua:1433: attempt to index local 'locked' (a number value)
stack traceback:
GCKI/control.lua:1433: in function <GCKI/control.lua:1395>
10357.421 Error ServerMultiplayerManager.cpp:91: MultiplayerManager failed: "The mod Gizmos Car Keys (improved) (1.1.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event GCKI::on_built_entity (ID 6)
GCKI/control.lua:1433: attempt to index local 'locked' (a number value)
stack traceback:
GCKI/control.lua:1433: in function <GCKI/control.lua:1395>"
10357.421 Info ServerMultiplayerManager.cpp:780: updateTick(3314038) changing state from(InGame) to(Failed)
10357.421 Quitting: multiplayer error.
10358.218 Info ServerMultiplayerManager.cpp:140: Quitting multiplayer connection.
10358.218 Info ServerMultiplayerManager.cpp:780: updateTick(4294967295) changing state from(Failed) to(Closed)
10358.219 Info HttpSharedState.cpp:54: Downloading https://multiplayer.factorio.com/remove-game/10400156
10358.631 Info UDPSocket.cpp:218: Closing socket
10358.631 Info UDPSocket.cpp:248: Socket closed
10358.632 Goodbye

Sorry for the late reply. There is an almost ready rewritten version which I made several months ago but never finished. For version 1.1.1, you can fix the bug by changing line 1433 of control.lua to this:

 color_vehicle(global.GCKI_vehicles[locked].entity)

The thing about the hypertubes is funny. For the new version, I've made a list of incompatible prototypes, I probably should add the hypertubes (probably some other prototypes as well) to GCKI's blacklist.

Should be fixed in version 1.1.2!