Fix state machine error
Fix state machine error

If the initial state is NULL, the error need to be raised to force an
error in Lua.

haka-security/haka,Wingless-Archangel/haka,nabilbendafi/haka,lcheylus/haka,LubyRuffy/haka,nabilbendafi/haka,lcheylus/haka,haka-security/haka,lcheylus/haka,Wingless-Archangel/haka,haka-security/haka,LubyRuffy/haka,nabilbendafi/haka