This prevents a crash when a 'nil' digger is passed by the engine to minetest.node_dig.
@@ -573,7 +573,7 @@ minetest.register_abm({
--
function default.can_interact_with_node(player, pos)
- if player then
+ if player and player:is_player() then
if minetest.check_player_privs(player, "protection_bypass") then
return true
end