不知道什么错误

[sckush]

Interface\FrameXML\StaticPopup.lua:4168: bad argument #2 to 'SetFormattedText' (number expected, got nil)
Count: 1

Call Stack:
[C]: ?
[C]: in function SetFormattedText' Interface\FrameXML\StaticPopup.lua:4168: in function <Interface\FrameXML\StaticPopup.lua:4023> [C]: in function StaticPopup_Show'
Interface\FrameXML\LFGList.lua:163: in function <Interface\FrameXML\LFGList.lua:108>