애드온 처음 설치했는데 경고 메시지가 뜨네요

Message: InterfaceAddOnsEuiScriptmoduleRLBox.lua:5: Cannot find a library instance of "LibGroupInSpecT-1.1".

Time: Wed Nov 18 13:32:53 2020

Count: 1

Stack: InterfaceAddOnsEuiScriptmoduleRLBox.lua:5: Cannot find a library instance of "LibGroupInSpecT-1.1".

[string "=[C]"]: in function `error'

[string "@InterfaceAddOnslibsLibStubLibStub.lua"]:23: in function `LibStub'

[string "@InterfaceAddOnsEuiScriptmoduleRLBox.lua"]:5: in main chunk

Locals: (*temporary) = "Cannot find a library instance of "LibGroupInSpecT-1.1"."

Message: (null)

Time: Wed Nov 18 13:32:55 2020

Count: 4

이렇게 뜨는데 뭐가 문제인걸까요?