[ERROR] Buffer length is less than zero! Weird string!

I've been receiving these errors for more than a few months now when switching servers, and BC is always updated to latest builds. Currently running on #847
http://puu.sh/7eV4Z.jpg
http://gyazo.com/f502a87d6c20cac5dc3e549963cf5c4d
Any assistance would be greatly appreciated!