2016-08-09 20:41:53: ERROR[Main]: ServerError: Lua: Runtime error from mod '' in callback on_chat_message(): ...inetest/mods/animals_modpack-2.5.0/factions/factions.lua:310: attempt to index field 'rank' (a nil value)
2016-08-09 20:41:53: ERROR[Main]: stack traceback:
2016-08-09 20:41:53: ERROR[Main]: 	...inetest/mods/animals_modpack-2.5.0/factions/factions.lua:310: in function 'on_add_rank'
2016-08-09 20:41:53: ERROR[Main]: 	...inetest/mods/animals_modpack-2.5.0/factions/factions.lua:236: in function 'add_rank'
2016-08-09 20:41:53: ERROR[Main]: 	...est/mods/animals_modpack-2.5.0/factions/chatcommands.lua:415: in function 'run'
2016-08-09 20:41:53: ERROR[Main]: 	...est/mods/animals_modpack-2.5.0/factions/chatcommands.lua:582: in function 'func'
2016-08-09 20:41:53: ERROR[Main]: 	/usr/share/minetest/builtin/game/chatcommands.lua:42: in function </usr/share/minetest/builtin/game/chatcommands.lua:30>
2016-08-09 20:41:53: ERROR[Main]: 	/usr/share/minetest/builtin/game/register.lua:369: in function </usr/share/minetest/builtin/game/register.lua:349>