I have same error.
If i ever use Bobas Adjustable Inserters, Server crashes because of controltech.
1262.101 Script @ControlTech/control.lua:160: pickup
1262.101 Script @ControlTech/control.lua:160: main_table
1262.101 Script @ControlTech/control.lua:160: bob_logistics_inserter_gui
1262.101 Script @ControlTech/control.lua:160: left
1262.101 Error MainLoop.cpp:1285: Exception at tick 841788: The mod ControlTech (1.1.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event ControlTech::on_gui_checked_state_changed (ID 3)
ControlTech/control.lua:160: attempt to index local 'gui_frame' (a nil value)
stack traceback:
ControlTech/control.lua:160: in function <ControlTech/control.lua:151>
1262.101 Error ServerMultiplayerManager.cpp:91: MultiplayerManager failed: "The mod ControlTech (1.1.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event ControlTech::on_gui_checked_state_changed (ID 3)
ControlTech/control.lua:160: attempt to index local 'gui_frame' (a nil value)
stack traceback:
ControlTech/control.lua:160: in function <ControlTech/control.lua:151>"