Attempt to join game causes Server Error

[Beanzilla]

The server logs:

2021-02-03 12:03:17: ERROR[Main]: ServerError: AsyncErr: environment_Step: Runtime error from mod 'tower_defense' in callback environment_Step(): ...home/minetest_user/.minetest/mods/tower_defense/shop.lua:5: attempt to call field 'get_page' (a nil value)
2021-02-03 12:03:17: ERROR[Main]: stack traceback:
2021-02-03 12:03:17: ERROR[Main]: 	...home/minetest_user/.minetest/mods/tower_defense/shop.lua:5: in function 'func'
2021-02-03 12:03:17: ERROR[Main]: 	...e/minetest_user/minetest/bin/../builtin/common/after.lua:20: in function '?'
2021-02-03 12:03:17: ERROR[Main]: 	.../minetest_user/minetest/bin/../builtin/game/register.lua:426: in function <.../minetest_user/minetest/bin/../builtin/game/register.lua:410>

The mods list:

• beds
• binoculars
• boats
• bones
• bucket
• butterfiles
• carts
• creative
• default
• doors
• dungeon_loot
• dye
• env_sounds
• farming
• fire
• fireflies
• flowers
• game_commands
• give_inital_stuff
• map
• mtg_craftguide
• player_api
• screwdriver
• sethome
• sfinv
• spawn
• stairs
• tnt
• tower_defense
• vessels
• walls
• weather
• wool
• xpanes

[Beanzilla]

I added this to shop.lua

local sfinv = rawget(_G, "sfinv") or nil

And now all things work. Thank you for a great mod.

[Beanzilla]

Not sure if it's me or not but it just seems like the prices of things are really expensive. (Not sure if that is because you found it too easy for multiple players on a single game or what)

No big deal though, I just changed the prices for my local copy (since it will just be singleplayer)