Game Crash because i deactivated a mod

[HalfDream]

Well i installed the Droids mod and i know it's not for 4f.
Everything worked fine but i dont want it anymore.
So i deactivated it. I got some errors when trying to start again which were easy to fix. But i still the one single error which keeps crashing my game.

It says:
No thingdef with short hash 29164. Adding as null to dictionary.

Please help me with this

[iame6162013]

which mods are you using?
what's the order you are using them?

[HalfDream]

I am using the droids mod and thats the only mod installed.

[iame6162013]

you did not try to open a save game with it did you?

[HalfDream]

I installed droids and started a new game. The thing i want to do now is get rid of the droids mod and play with the same save file again

[iame6162013]

i'm sorry there is no way to do that
(except for save file editing)

[HalfDream]

thats actually what i tried. I fixed everything but there is that strange error i get all the time. It says
No ThingDef with short hash 29164. Adding as null to Dictionary