Hmm, i see so many different overwrites in that first error...
Hard to tell which one causes it.
What add-on has the DestroyRunaway package?
My best bet that it could be in that one.
Though it is just a mere guess.
Try to disable some other add-ons, like the one that has to do with DestroyRunaway.
See if you still get the message.
As for the second error, that is a strange error and seems to be related to Slayer though.
Is there really nothing you can do? :/
And if not, why are you so sure if i may ask?
Just out of curiosity by the way, i am not blaming you for anything. :P