The mod Module Inserted caused a non-recoverable error.
Please report this error to the mod author.
Error while running event ModuleInserter::on_pre_player_removed (ID 130)
ModuleInserter/gui.lua:378: attempt to index local pdata (a nil value)
stack traceback:
ModuleInserter/gui.lua:378: in function 'delete'
ModuleInserter/control.lua:640: in function
<ModuleInserter/control.lua:639>
Not a huge issue as your mod doesn't add anything to the editor, but it is mildly annoying to have to disable it whenever I want to edit a scenario.