I don't mean the scripts, I mean the plugins. For example, the version 2 hashing module, Juppi's MySQL module, etc.
One of them may have a bug if it's not your scripts at fault.
The only plugin I load is "lu_ini", maybe it has a bug
I believe that one is a default one with LU, so likely not.
Edit: I just looked it up. It seems to be a
known bug in RakNet, but doesn't cause any reported issues. I have a feeling something in your scripts invoked the bug to see the light of day, even though your scripts probably aren't at fault.
Wait until the next version of LU and see if you still get it. RakNet had been updated to the latest version for that upcoming release, so it may be fixed already.