1.6.1 BDB custom decoupler Plugin not working

[TomVorat]

So, a few parts in the Mod Bluedog Design Bureau (developer version) are not working correctly. Namely the CSM Decoupler and the LM Adapter (most probably every part that has a animation) wich play their animation when picked from the parts menu but can't be retracted or even properly decoupled in game. There is a button in the parts dropdown menu wich is called "play animation" though. I installed every mod that came with the base mod and even tried to reinstall it a few times or even use another version of the mod. The KSP.log file seems to be spammed with "[EXC 15:22:36.115] TypeLoadException: Could not load type 'ModuleDecouplerBase' from assembly 'BDB'." I don't know if I installed it wrong (which seems unlikely since I installed that mod and others successfully before). It could be that it is conflicting with other mods, a screenshot of my GameData Folder can be found here and a picture of my KSP Log from yesterday can be found here (the KSP Log is quite big though since it is filled with error messages, I apologize for my messy install). A few version before everything worked just fine and anyone else I know doesn't have this problem.

Any help would be highly appreciated!  Not sure if I got all the important Information, If thats not the case just ask me. I also asked the Dev for help but he could seem to help me.

[svcino]

Require 1.6.2 QF