1x ...dMedia-3.0/LibSharedMedia-3.0-8020003/LibSharedMedia-3.0.lua:219: LibSharedMedia-3.0:Register(mediatype, key, data, langmask) - mediatype must be string, got nil
[string "=[C]"]: in function `error'
[string "@LibSharedMedia-3.0-8020003/LibSharedMedia-3.0/LibSharedMedia-3.0.lua"]:219: in function <...dMedia-3.0/LibSharedMedia-3.0/LibSharedMedia-3.0.lua:217>
[string "=[C]"]: in function `Register'
[string "@SharedMedia_MyMedia/MyMedia.lua"]:6: in main chunk

Locals:
(*temporary) = "LibSharedMedia-3.0:Register(mediatype, key, data, langmask) - mediatype must be string, got nil"

라고나오는데 뭘까요... l