Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).

Backtrace:

(tail call): ?
Module:EditAtWikidata:29: ?
(tail call): ?
mw.lua:525: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:70: ?
(tail call): ?
mw.lua:194: in function "old_pairs"
...ribunto/includes/engines/LuaCommon/lualib/mwInit.lua:17: in function "pairs"
Module:Arguments:207: in function "mergeArgs"
Module:Arguments:320: in function "old_pairs"
...ribunto/includes/engines/LuaCommon/lualib/mwInit.lua:17: in function "pairs"
Module:List:195: in function "chunk"
mw.lua:525: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:70: ?
(tail call): ?
mw.lua:175: ?
Module:Infobox:526: in function "preprocessArgs"
Module:Infobox:574: in function "parseDataParameters"
Module:Infobox:607: in function "chunk"
mw.lua:525: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:70: ?
(tail call): ?
mw.lua:175: ?
Module:Arguments:254: ?
Module:Documentation:659: in function "_content"
Module:Documentation:150: ?
(tail call): ?
mw.lua:525: ?
(tail call): ?
[C]: in function "xpcall"
MWServer.lua:99: in function "handleCall"
MWServer.lua:313: in function "dispatch"
MWServer.lua:52: in function "execute"
mw_main.lua:7: in main chunk
[C]: ?

Identifiers
ChemSpider	Template:Infobox drug/formatChemSpider Template:Infobox drug/formatChemSpider
E number	{{#property:P628}}
CompTox Dashboard (EPA)	{{#property:P3117}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
ECHA InfoCard	{{#property:P2566}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).

Template:Infobox drug