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 server logs:
The mods list: