Code:
L 04/20/2012 - 00:05:50: SourceMod error session started
L 04/20/2012 - 00:05:50: Info (map "cp_gorge") (file "errors_20120420.log")
L 04/20/2012 - 00:05:50: [SM] Native "TF2Items_SetQuality" reported: Quality out of bounds: 13 [-1 ... 11]
L 04/20/2012 - 00:05:50: [SM] Displaying call stack trace for plugin "tf2ibwr.smx":
L 04/20/2012 - 00:05:50: [SM] [0] Line 342, C:\Program Files\Steam\steamapps\cs_shooterman\team fortress 2\tf\addons\sourcemod\scripting\tf2ibwr.sp::Timer_HookedEvent()
L 04/20/2012 - 00:07:11: Error log file session closed.
EDIT: I'm told this item index is supposed to be for the "Haunted" item quality.