fix default formspec crashes

common.lua

@@ -183,7 +183,7 @@ function pipeworks.create_fake_player(def, is_dynamic)
 		is_player = delay(true),
 		is_fake_player = true,
 
-		_formspec = def.formspec or default.gui_survival_form,
+		_formspec = def.formspec or "size[8,8.5]label[1,1;404 formspec not found]",
 		_hp = def.hp or 20,
 		_breath = 11,
 		_pos = def.position and table.copy(def.position) or vector.new(),

teleport_tube.lua

@@ -153,9 +153,7 @@ local function update_meta(meta, can_receive)
 		"label[7.0,0;"..S("Receive").."]"..
 		"image_button[7.0,0.5;1,0.6;pipeworks_button_" .. cr_state .. ".png;cr" .. (can_receive and 0 or 1) .. ";;;false;pipeworks_button_interm.png]"..
 		"button_exit[6.3,1.3;2,1;close;"..S("Close").."]"..
-		"label[0.2,2.3;"..itext.."]"..
-		default.gui_bg..
-		default.gui_bg_img)
+		"label[0.2,2.3;"..itext.."]")
 end
 
 pipeworks.register_tube("pipeworks:teleport_tube", {

trashcan.lua

@@ -25,10 +25,6 @@ minetest.register_node("pipeworks:trashcan", {
 				"item_image[0,0;1,1;pipeworks:trashcan]"..
 				"label[1,0;"..S("Trash Can").."]"..
 				"list[context;trash;3.5,1;1,1;]"..
-				default.gui_bg..
-				default.gui_bg_img..
-				default.gui_slots..
-				default.get_hotbar_bg(0,3) ..
 				"list[current_player;main;0,3;8,4;]" ..
 				"listring[]")
 		meta:set_string("infotext", S("Trash Can"))

vacuum_tubes.lua

@@ -46,9 +46,7 @@ if pipeworks.enable_mese_sand_tube then
 						"label[1.2,0.2;"..S("Adjustable Vacuuming Tube").."]"..
 						"field[0.5,1.6;2.1,1;dist;"..S("Radius")..";${dist}]"..
 						"button[2.3,1.3;1.5,1;set_dist;"..S("Set").."]"..
-						"button_exit[3.8,1.3;2,1;close;"..S("Close").."]"..
-						default.gui_bg..
-						default.gui_bg_img)
+						"button_exit[3.8,1.3;2,1;close;"..S("Close").."]")
 					meta:set_string("infotext", S("Adjustable Vacuuming Pneumatic Tube Segment"))
 				end,
 				on_receive_fields = function(pos,formname,fields,sender)