I get this error sometimes when meteors spawn, presumably as the game tries to place biters.
1289.981 Error MainLoop.cpp:1404: Exception at tick 9550090: The mod Enemy Race Manager (1.22.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event enemyracemanager::on_nth_tick(11)
enemyracemanager/lib/interplanetary_attacks.lua:163: attempt to index local 'intel' (a nil value)
stack traceback:
enemyracemanager/lib/interplanetary_attacks.lua:163: in function 'scan'
enemyracemanager/control.lua:136: in function '?'
enemyracemanager/lib/cron_processor.lua:23: in function 'process_one_job'
enemyracemanager/lib/cron_processor.lua:156: in function 'handler'
stdlib/stdlib/event/event.lua:342: in function 'pcall'
stdlib/stdlib/event/event.lua:362: in function 'dispatch_event'
stdlib/stdlib/event/event.lua:438: in function <stdlib/stdlib/event/event.lua:396>