2017-09-07 13:39:19: ERROR[Main]: ServerError: AsyncErr: ServerThread::run Lua: Runtime error from mod 'stamina' in callback luaentity_Step(): Runtime error from mod 'stamina' in callback on_player_hpchange(): ...inetest/.minetest/worlds/oldserver/worldmods/hp/init.lua:42: attempt to conc
2017-09-07 13:39:19: ERROR[Main]: tenate local 'newhp' (a nil value)
2017-09-07 13:39:19: ERROR[Main]: stack traceback:
2017-09-07 13:39:19: ERROR[Main]: 	...inetest/.minetest/worlds/oldserver/worldmods/hp/init.lua:42: in function 'func'
2017-09-07 13:39:19: ERROR[Main]: 	/usr/local/share/minetest/builtin/game/register.lua:514: in function </usr/local/share/minetest/builtin/game/register.lua:499>
2017-09-07 13:39:19: ERROR[Main]: 	[C]: in function 'punch'
2017-09-07 13:39:19: ERROR[Main]: 	...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:1774: in function 'do_states'
2017-09-07 13:39:19: ERROR[Main]: 	...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:2504: in function <...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:2372>
2017-09-07 13:39:19: ERROR[Main]: stack traceback:
2017-09-07 13:39:19: ERROR[Main]: 	[C]: in function 'punch'
2017-09-07 13:39:19: ERROR[Main]: 	...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:1774: in function 'do_states'
2017-09-07 13:39:19: ERROR[Main]: 	...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:2504: in function <...netest/.minetest/worlds/oldserver/worldmods/mobs/api.lua:2372>