Describe the bug
lua error happening at random, was afk in the valdrakken bank area when this one happened

4x [ADDON_ACTION_FORBIDDEN] AddOn 'Prat-3.0-3.9.37' tried to call the protected function 'UNKNOWN()'.
Debugstack was nil.

the taint log entry for it was this

10/2 17:24:00.409 Interface/FrameXML/ChatFrame.lua:3191 ChatFrame_OnEvent()
10/2 17:24:00.409 An action was blocked because of taint from Prat-3.0 -
10/2 17:24:00.409 Interface/AddOns/Prat-3.0/services/patterns.lua:197 MatchPatterns()
10/2 17:24:00.409 Interface/AddOns/Prat-3.0/addon/addon.lua:697
10/2 17:24:00.409 Interface/FrameXML/ChatFrame.lua:3191 ChatFrame_OnEvent()
10/2 17:24:00.409 ChatFrame8:loatingChatFrame.xml:513_OnEvent()
10/2 17:24:00.409 Interface/FrameXML/ChatFrame.lua:3191 ChatFrame_OnEvent()
10/2 17:24:00.409 An action was blocked because of taint from Prat-3.0 -
10/2 17:24:00.409 Interface/AddOns/Prat-3.0/services/patterns.lua:197 MatchPatterns()
10/2 17:24:00.409 Interface/AddOns/Prat-3.0/addon/addon.lua:697
10/2 17:24:00.409 Interface/FrameXML/ChatFrame.lua:3191 ChatFrame_OnEvent()
10/2 17:24:00.409 ChatFrame8:loatingChatFrame.xml:513_OnEvent()

To Reproduce
Steps to reproduce the behavior:
no clear cause, and as far as i can tell it didnt actually do anything, but i reloaded shortly after it happened

Expected behavior
not to error when im afk

Screenshots
If applicable, add screenshots to help explain your problem.

Version Information (please complete the following information):

• Wow Version: current retail
• Prat Version: 3.0 3.9.37

Addons you are running
a ton of them

This is a Blizzard bug, detailed at Stanzilla/WoWUIBugs#483 and there isn't anything Prat can do to work around it.