i used to have no big problems with this mod, but just now (using factorio 0.18.24) i tried to copy (ctrl-c) a small area which had only vanilla floors (gras/dirt/etc) and a few road tiles (from transport drones mod).
result: the following crash :-(
just tried again, this time only trying to copy vanilla stone floor, resulting in the same crash :-(

The mod Magic Lamp (0.18.1) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event magic-lamp::on_player_setup_blueprint (ID 68)
magic-lamp/control.lua:793: bad argument #1 of 2 to 'pairs' (table expected, got nil)
stack traceback:
[C]: in function 'pairs'
magic-lamp/control.lua:793: in function <magic-lamp/control.lua:785>

i continued playing and the pattern to the crashes seems to be that all is always well as long as items are included in the copy/blueprint, and it always crashes as soon as no items but only some floor tiles are selected.