I had a box with a note attached, i removed the box, but the note continues to display. Using the deconstruction planner over the tile in question produces the following error:

The mod Attach Notes (0.5.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event attach-notes::on_player_deconstructed_area (ID 70)
attach-notes/scripts/entity-notes/controller.lua:238: attempt to index field '?' (a nil value)
stack traceback:
attach-notes/scripts/entity-notes/controller.lua:238: in function 'func'
attach-notes/framework.lua:98: in function <attach-notes/framework.lua:97>