The mod Rail Signal Planner caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RailSignalPlanner::on_player_selected_area (ID 49)
The mod The Blueprint Lab - Credomane caused a non-recoverable error.
Please report this error to the mod author.

Error while running event BlueprintLab_Credomane::script_raised_built (ID 77)
BlueprintLab_Credomane/scripts/lab-effects.lua:89: attempt to index local 'entity' (a nil value)
stack traceback:
BlueprintLab_Credomane/scripts/lab-effects.lua:89: in function <BlueprintLab_Credomane/scripts/lab-effects.lua:87>
stack traceback:
RailSignalPlanner/scripts/ghostify.lua:32: in function 'ghostify'
RailSignalPlanner/control.lua:33: in function 'on_player_selected_area'
RailSignalPlanner/control.lua:38: in function <RailSignalPlanner/control.lua:37>
stack traceback:
[C]: in function 'create_entity'
RailSignalPlanner/scripts/ghostify.lua:32: in function 'ghostify'
RailSignalPlanner/control.lua:33: in function 'on_player_selected_area'
RailSignalPlanner/control.lua:38: in function <RailSignalPlanner/control.lua:37>

Hi, thanks for the report.
Unfortunately this is a fault in the BlueprintLab mod, where the author should check if the entity used still exists.