Warning: Unpack(): Type H: Outside of string in C:\Bebot\Aochat.php on line 711

Finally got the thing up and running, but Got this message and was wondering what it might be, or effect within the bot, and possibly a solution to this. (sorry for being such a nuisance)

If memory serves, its due to a change in how a php function handles certain input values, and in some cases breaking applications depending on the old behaviour.

Its a harmless warning though from what i recall and can be ignored.