Hacked and favicon not showing

[pityocamptes]

Ok, went into Styles & Templates -> Style Manager -> StyleVars and went into favicon. I put the FULL path to the favicon icon and hit save and get this:

Warning: Declaration of vB_DataManager_StyleVarDefn::delete() should be compatible with that of vB_DataManager::delete() in ..../includes/class_dm_stylevar.php on line 233

Warning: Declaration of vB_DataManager_StyleVar::save() should be compatible with that of vB_DataManager::save() in ..../includes/class_dm_stylevar.php on line 615