Yep, try what madman66 said. I also noticed you have two versions of stuffplug installed, so possibly those two versions interfere eachother. If it comes down to either one of those two causing it try to enable and disable those two in turns an see if the problem is still there, if disabling one of both solves the problem its time to choose wich version you would like to keep most.
We'd appreciate it if you post your findings here, so we'll know for next time when someone has the same problem
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