https://imgur.com/Evbq2A4

Can't read russian, but I appear to get the same error (on_player_changed_surface (ID 51) in control.lua line 979) resulting in a crash when entering a Factorissimo factory building.

do you have a save?

I am having the same problem:

57317.354 Error MainLoop.cpp:1202: Exception at tick 10705185: The mod Factorissimo2 (2.4.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Factorissimo2::on_tick (ID 0)
The mod Rampant (0.18.9) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Rampant::on_player_changed_surface (ID 51)
Rampant/control.lua:979: attempt to index upvalue 'gameSurfaces' (a nil value)
stack traceback:
Rampant/control.lua:979: in function <Rampant/control.lua:970>
stack traceback:
Factorissimo2/control.lua:1045: in function 'teleport_player_safely'
Factorissimo2/control.lua:1051: in function 'enter_factory'
Factorissimo2/control.lua:1079: in function 'teleport_players'
Factorissimo2/control.lua:1171: in function <Factorissimo2/control.lua:1141>
stack traceback:
[C]: in function 'teleport'
Factorissimo2/control.lua:1045: in function 'teleport_player_safely'
Factorissimo2/control.lua:1051: in function 'enter_factory'
Factorissimo2/control.lua:1079: in function 'teleport_players'
Factorissimo2/control.lua:1171: in function <Factorissimo2/control.lua:1141>
57317.354 Error ServerMultiplayerManager.cpp:90: MultiplayerManager failed: "The mod Factorissimo2 (2.4.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Factorissimo2::on_tick (ID 0)
The mod Rampant (0.18.9) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Rampant::on_player_changed_surface (ID 51)
Rampant/control.lua:979: attempt to index upvalue 'gameSurfaces' (a nil value)
stack traceback:
Rampant/control.lua:979: in function <Rampant/control.lua:970>
stack traceback:
Factorissimo2/control.lua:1045: in function 'teleport_player_safely'
Factorissimo2/control.lua:1051: in function 'enter_factory'
Factorissimo2/control.lua:1079: in function 'teleport_players'
Factorissimo2/control.lua:1171: in function <Factorissimo2/control.lua:1141>
stack traceback:
[C]: in function 'teleport'
Factorissimo2/control.lua:1045: in function 'teleport_player_safely'
Factorissimo2/control.lua:1051: in function 'enter_factory'
Factorissimo2/control.lua:1079: in function 'teleport_players'
Factorissimo2/control.lua:1171: in function <Factorissimo2/control.lua:1141>"

http://blargh.com/Server14Start.zip has the save file from my dedicated server that is crashing, but the game is heavily modded (Factorissimo2 and Rampant amongst many others). Just run into a Factorissimo2 factory to trigger.

should be fixed in the latest.

Confirm crash is fixed, thank you! I do still get the "Rampant can only have one active surface." warning on entering every different factory (since they are all different surfaces). Maybe make the /SetRampantAISurface command also set a flag to muzzle those warnings?

I have same error "ID 0"
Use:
Krastorio2
Space Exploration

Мод Rampant (2.0.2) вызвал неустранимую ошибку.
Пожалуйста, сообщите об этой ошибке автору мода.

Error while running event Rampant::on_tick (ID 0)
Entity name not specified.
stack traceback:
[C]: in function 'create_entity'
Rampant/libs/ChunkProcessor.lua:158: in function 'processPendingUpgrades'
Rampant/control.lua:950: in function <Rampant/control.lua:896>

Update to 2.0.3, this should be fixed. thanks for the report though

Мод Rampant (2.0.3) вызвал неустранимую ошибку.
Пожалуйста, сообщите об этой ошибке автору мода.

Error while running event Rampant::on_tick (ID 0)
Rampant/libs/ChunkProcessor.lua:83: attempt to index local 'event' (a nil value)
stack traceback:
Rampant/libs/ChunkProcessor.lua:83: in function 'processPendingChunks'
Rampant/control.lua:911: in function <Rampant/control.lua:896>

is this reproducible and do you have a save that you are willing to share?