The mod Fill4Me caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Fill4Me::on_init()
Fill4Me/stdlib/event/event.lua:156: Fill4Me/stdlib/event/event.lua:156: core/lualib/production-score.lua:20: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'error'
Fill4Me/stdlib/event/event.lua:156: in function 'dispatch'
Fill4Me/stdlib/event/event.lua:38: in function <Fill4Me/stdlib/event/event.lua:37>