EssentialsSpawn

[Rekuen]

I have this errors in the log after going to the nether:

[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:11] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:11] Stack trace:
[16:25:11] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:11] Plugins/EssentialsSpawn/hooks.lua(55): (no name)
[16:25:11] Stack trace end
[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:11] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:11] Stack trace:
[16:25:11] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:11] Plugins/EssentialsSpawn/hooks.lua(55): (no name)
[16:25:11] Stack trace end
[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:11] Lua engine: attempting to push a plain pointer, pushing nil instead.
[16:25:11] This indicates an unimplemented part of MCS bindings
[16:25:11] Stack trace:
[16:25:11] Stack trace end
[16:25:11] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:11] Stack trace:
[16:25:11] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:11] Plugins/EssentialsSpawn/hooks.lua(45): (no name)
[16:25:11] Stack trace end
[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:11] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:11] Stack trace:
[16:25:11] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:11] Plugins/EssentialsSpawn/hooks.lua(79): (no name)
[16:25:11] Stack trace end
[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:11] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:11] Stack trace:
[16:25:11] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:11] Plugins/EssentialsSpawn/hooks.lua(95): (no name)
[16:25:11] Stack trace end
[16:25:11] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:12] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:12] Stack trace:
[16:25:12] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:12] Plugins/EssentialsSpawn/hooks.lua(79): (no name)
[16:25:12] Stack trace end
[16:25:12] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:13] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:13] Stack trace:
[16:25:13] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:13] Plugins/EssentialsSpawn/hooks.lua(79): (no name)
[16:25:13] Stack trace end
[16:25:13] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:14] Lua engine: attempting to push a plain pointer, pushing nil instead.
[16:25:14] This indicates an unimplemented part of MCS bindings
[16:25:14] Stack trace:
[16:25:14] Stack trace end
[16:25:14] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:14] Stack trace:
[16:25:14] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:14] Plugins/EssentialsSpawn/hooks.lua(45): (no name)
[16:25:14] Stack trace end
[16:25:14] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:14] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil
[16:25:14] Stack trace:
[16:25:14] Plugins/EssentialsSpawn/main.lua(60): IsInSpawn
[16:25:14] Plugins/EssentialsSpawn/hooks.lua(79): (no name)
[16:25:14] Stack trace end
[16:25:14] Error in plugin EssentialsSpawn calling function <callback>()
[16:25:15] LUA: Plugins/EssentialsSpawn/main.lua:60: attempt to compare number with nil


I post it here for you to know in case you have the time to check it.
I will open an issue in github too.
Thanks.