Coffee Interface?

The little box kept popping up--"New Device Found" along with it's little pop sound letting me know the computer is trying to configure something.  The only problem was that I hadn't plugged anything new into it.  "Unable to configure device"  it told me.  I hit cancel.  Again--same thing.  Cancel.  Unable.  Cancel.  

What's the deal here?

While rearranging things on my desk a few minutes earlier, I had accidentally dropped the end of my iPhone charger cable into my coffee cup.

Apparently, there's no app for that.