Sometimes when deconstructing entities I get the following error:

The mod Autobuild (0.6.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event autobuild::on_nth_tick(10)
Index out of belt bounds.
stack traceback:
    [C]: in function '__index'
    __autobuild__/control.lua:735: in function 'move_items_on_belt_into_players_inventory'
    __autobuild__/control.lua:837: in function <__autobuild__/control.lua:822>
    (...tail calls...)
    __autobuild__/control.lua:967: in function 'do_autobuild'
    __autobuild__/control.lua:1082: in function 'handle_player_update'
    __autobuild__/control.lua:1088: in function <__autobuild__/control.lua:1086>

Having a full inventory triggers it often, but also I think deconstructing belts that have stacked items is triggering it.

in 2.0.69 too

update: i proposed code to fix this error here: https://github.com/mspielberg/factorio-autobuild/pull/19/files

If mod author can merge it then it will appear in some next version of mod. In meantime you can edit mod manually on your computer to apply this fix if you want.