Problem with lua files

[ghost]

this is from /home/mason1920/.minetest/debug.txt
2018-05-31 23:52:09: ERROR[Main]: Subgame specified in default_game [minetest] is invalid.
2018-05-31 23:52:10: WARNING[Main]: Could not load icon file '/usr/local/share/icons/hicolor/128x128/apps/minetest.png'
2018-05-31 23:52:14: WARNING[Main]: BanManager: creating /home/mason1920/.minetest/worlds/test1/ipban.txt
2018-05-31 23:52:14: WARNING[Main]: NodeDefManager: Ignoring CONTENT_IGNORE redefinition
2018-05-31 23:52:14: ERROR[Main]: ModError: Failed to load and run script from /home/mason1920/spheretest-release/bin/../games/minetest_game-0.4.16/mods/default/init.lua:
2018-05-31 23:52:14: ERROR[Main]: ...ames/minetest_game-0.4.16/mods/default/functions.lua:134: attempt to index field 'settings' (a nil value)
2018-05-31 23:52:14: ERROR[Main]: stack traceback:
018-05-31 23:52:14: ERROR[Main]: ...ames/minetest_game-0.4.16/mods/default/functions.lua:134: in main chunk
2018-05-31 23:52:14: ERROR[Main]: [C]: in function 'dofile'
2018-05-31 23:52:14: ERROR[Main]: .../../games/minetest_game-0.4.16/mods/default/init.lua:40: in main chunk
2018-05-31 23:52:14: ERROR[Main]: Check debug.txt for details.

the map I created won't play and gives these errors.