1x NeatPlates\NeatPlatesUtility.lua:991: attempt to index local 'panel' (a nil value)
NeatPlates\NeatPlatesUtility.lua:991: in function OpenInterfacePanel' NeatPlatesHub\Hub.lua:700: in function ShowNeatPlatesHubPanel'
NeatPlatesHub\Hub.lua:716: in function ?' FrameXML\ChatFrame.lua:4757: in function ChatEdit_ParseText'
FrameXML\ChatFrame.lua:4418: in function ChatEdit_SendText' FrameXML\ChatFrame.lua:4454: in function ChatEdit_OnEnterPressed'
[string ":OnEnterPressed"]:1: in function <[string ":OnEnterPressed"]:1>

Locals:
panel = nil
(*temporary) = false
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index local 'panel' (a nil value)"
fixed = false

When I type “/hub”

This appears to be the same issue as reported here.
So I'm gonna close this and refer to that issue for further discussion.

BTW，do you have any plan to localize this great addon？

I don't have any plans for localization at the moment, mostly because I haven't given it much thought.
But all I can really do is create the English localization file and then I would need someone else to actually do the translation to other languages from there.

OK，look forward the localization in the future.
And my friend can update zhTW.lua

I can do Spanish :)