Found a critical bug causing a fatal error!
For death - An attempt to harass the enemy by building necromancers in the forest behind the main base (arrived on damaged ships). I put the factory, after - the obelisk. I change the form of the necromancer... and a fatal error. Possibly related to finding a path with a necromancer...
Critical bug is not always reproduced, but still sooner or later causes a critical error. It seems to be related to paths.
The last time I managed to take a seat, build up obelisks and start calling troops. But at the time of the appearance of the next batch of zombies, a critical error appeared.