Error on Startup

[Spiderkeg]

I am receiving the following error on startup:

Message: Interface\AddOns\PhanxChat\Core.lua:185: bad argument #1 to 'strmatch' (string expected, got nil)
Time: Thu Nov 15 07:03:21 2018
Count: 1
Stack: Interface\AddOns\PhanxChat\Core.lua:185: bad argument #1 to 'strmatch' (string expected, got nil)
[C]: ?
Interface\AddOns\PhanxChat\Core.lua:185: in function <Interface\AddOns\PhanxChat\Core.lua:181>
[C]: in function `ChatEdit_UpdateHeader'
Interface\FrameXML\ChatFrame.lua:2960: in function `ChatFrame_ConfigEventHandler'
Interface\FrameXML\ChatFrame.lua:2892: in function `ChatFrame_OnEvent'
[string "*:OnEvent"]:1: in function <[string "*:OnEvent"]:1>

Locals: (*temporary) = nil
(*temporary) = "%[(%d+)%. ?([^%s:%-%]]+)[^%]]*%](.*)"
(*temporary) = "string expected, got nil"

Any ideas?