Error log on loadup

I get this when I load a game:

release-767 (x64)
stonehearth/services/server/town/town.lua:401: attempt to index local ‘person’ (a nil value)
stack traceback:
radiant/modules/commons.lua:46: in function 'report_traceback’
radiant/modules/commons.lua:57: in function <radiant/modules/commons.lua:51>
stonehearth/services/server/town/town.lua:401: in function '_requirements_met’
stonehearth/services/server/town/town.lua:383: in function 'change_job’
stonehearth/services/server/town/town.lua:163: in function '_on_game_loaded’
stonehearth/services/server/town/town.lua:113: in function 'obj’
radiant/modules/events.lua:83: in function 'instance’
radiant/modules/events.lua:291: in function <radiant/modules/events.lua:285>
[C]: in function 'xpcall’
radiant/modules/commons.lua:66: in function 'xpcall’
radiant/modules/events.lua:285: in function <radiant/modules/events.lua:251>

Savefile please :slightly_smiling_face: