I seem to have a similar error.
A drone (from a drone maintenance mod) crashed atop the transmitting radio. Visually everything got replaced with drones (except a wire to the radio, which would also be nice to fix). However transmission stopped.
I opened the radio interface (the channel was remembered correctly), closed the interface and got this error:
14755.033 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "Мод Shortwave for 1.1 (0.3.2) вызвал неустранимую ошибку.
Пожалуйста, сообщите об этой ошибке автору мода.
Error while running event shortwave_fix::on_gui_closed (ID 88)
Given entity doesn't exist anymore.
stack traceback:
[C]: in function 'connect_neighbour'
shortwave_fix/control.lua:146: in function 'radio_tune'
shortwave_fix/control.lua:305: in function <shortwave_fix/control.lua:302>"