Lua error in Module:Documentation at line 144: message: type error in message cfg.container (string expected, got nil).

return {
  lang = "nb, nn, se", -- administrative languages: nb, nn
  ["01"] = {name="Østfold",lang="nb, nn"},
  ["02"] = {name="Akershus",lang="nb, nn"},
  ["03"] = {name="Oslo",lang="nb, nn"},
  ["04"] = {name="Hedmark",lang="nb, nn"},
  ["05"] = {name="Oppland",lang="nb, nn"},
  ["06"] = {name="Buskerud",lang="nb, nn"},
  ["07"] = {name="Vestfold",lang="nb, nn"},
  ["08"] = {name="Telemark",lang="nb, nn"},
  ["09"] = {name="Aust-Agder",lang="nb, nn"},
  ["10"] = {name="Vest-Agder",lang="nb, nn"},
  ["11"] = {name="Rogaland",lang="nb, nn"},
  ["12"] = {name="Hordaland",lang="nb, nn"},
  ["14"] = {name="Sogn og Fjordane",lang="nb, nn"},
  ["15"] = {name="Møre og Romsdal",lang="nb, nn"},
  ["18"] = {name="Nordland",lang="nb, nn"},
  ["19"] = {name="Troms",isonames={nb="Troms",nn="Troms",se="Romsa"}},
  ["20"] = {name="Finnmark",isonames={nb="Finnmark",nn="Finnmark",se="Finnmárku"}},
  ["21"] = {name="Svalbard",isoname="Svalbard (Arctic Region)",lang="nb, nn"},
  ["22"] = {name="Jan Mayen",isoname="Jan Mayen (Arctic Region)",lang="nb, nn"},
  ["23"] = {name="Trøndelag",lang="nb, nn"}
}