when loading the 1.1.5 of the mod i get the following error in mainmenu:

Die Mod Bob's Adjustable Inserters mod (1.1.5) hat einen Fehler verursacht, der nicht behoben werden kann.
Bitte informiere den Autor der Mod über diesen Fehler.

Error while running event bobinserters::on_configuration_changed
Can't destroy root element
stack traceback:
[C]: in function 'destroy'
bobinserters/control.lua:1189: in function 'destroy_gui_button'
bobinserters/control.lua:1197: in function 'create_gui_button'
bobinserters/control.lua:617: in function <bobinserters/control.lua:612>

Thanks for reporting this. Fix will be included in the next version.