Hi. Keep getting the following errors in my log, also the water doesn't seem to be increasing. Thanks.

Error calling Lua function "exec" from C: PackedMods/1440164001/Code/Script.lua:28: attempt to perform arithmetic on a nil value (upvalue 'mod_AmountOfWater')
[LUA ERROR] PackedMods/1440164001/Code/Script.lua:28: attempt to perform arithmetic on a nil value (upvalue 'mod_AmountOfWater')
[C](-1): global MapForEach
(36): <>
[C](-1): global procall
C:\Games\Steam\steamapps\common\Surviving Mars\CommonLua\Core\cthreads.lua(17): global StaticMsg
C:\Games\Steam\steamapps\common\Surviving Mars\CommonLua\Classes\MsgObj.lua(22): global Msg
Mars/Lua/City.lua(1472): <>
--- end of stack