World crashed and now won't open after an error occured.

[QuoteMasterN]

I'm not sure if this is a problem on my end or not but this has happened for a couple of singleplayer worlds I've made.
Minetest gives this as the error:
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: homedecor:rope_light_on_ceiling_off -> homedecor:rope_light_on_ceiling_0
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: homedecor:plasma_ball_off -> homedecor:plasma_ball_0
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: homedecor:rope_light_on_floor_on -> homedecor:rope_light_on_floor_14
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: homedecor:rope_light_on_ceiling_on -> homedecor:rope_light_on_ceiling_14
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: homedecor:plasma_ball_on -> homedecor:plasma_ball_14
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone -> castle_masonry:stair_dungeon_stone
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_outer -> castle_masonry:stair_dungeon_stone_outer
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_inner -> castle_masonry:stair_dungeon_stone_inner
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_alt -> castle_masonry:stair_dungeon_stone_alt
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_alt_4 -> castle_masonry:stair_dungeon_stone_alt_4
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_half -> castle_masonry:stair_dungeon_stone_half
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_alt_1 -> castle_masonry:stair_dungeon_stone_alt_1
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_alt_2 -> castle_masonry:stair_dungeon_stone_alt_2
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: castle:stair_dungeon_stone_right_half -> castle_masonry:stair_dungeon_stone_right_half
2019-11-18 20:15:17: WARNING[Main]: Assignment to undeclared global "remove_crystal" inside a function at ...bin\..\mods\dreambuilder_modpack\display_blocks\init.lua:52.
2019-11-18 20:15:17: WARNING[Main]: Node 'light_source' value exceeds maximum, limiting to maximum: display_blocks:universia_base
2019-11-18 20:15:17: WARNING[Main]: Not registering alias, item with same name is already defined: 3dforniture:table_lamp -> homedecor:table_lamp_off
2019-11-18 20:15:18: WARNING[Main]: Node default:wood has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node default:fence_wood has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Field "light_propagates": Deprecated; determined from paramtype
2019-11-18 20:15:18: WARNING[Main]: Field "light_propagates": Deprecated; determined from paramtype
2019-11-18 20:15:18: WARNING[Main]: Field "light_propagates": Deprecated; determined from paramtype
2019-11-18 20:15:18: WARNING[Main]: Node default:stone_block has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node default:stone has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node default:cobble has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node moreblocks:circle_stone_bricks has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node moreblocks:iron_checker has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node moreblocks:wood_tile has a palette, but not a suitable paramtype2.
2019-11-18 20:15:18: WARNING[Main]: Node moreblocks:wood_tile_flipped has a palette, but not a suitable paramtype2.
2019-11-18 20:15:19: WARNING[Main]: Not registering alias, item with same name is already defined: vines:rope -> ropes:rope
2019-11-18 20:15:19: WARNING[Main]: Not registering alias, item with same name is already defined: vines:rope_end -> ropes:rope_bottom
2019-11-18 20:15:19: WARNING[Main]: Not registering alias, item with same name is already defined: vines:rope_block -> ropes:steel5rope_block
2019-11-18 20:15:19: WARNING[Main]: Not registering alias, item with same name is already defined: technic:panel_concrete_bottom -> technic:panel_concrete
2019-11-18 20:15:19: WARNING[Main]: Not registering alias, item with same name is already defined: technic:micro_concrete_bottom -> technic:micro_concrete
2019-11-18 20:15:20: ACTION[Main]: World at [D:\Games\minetest-5.1.0-win64\bin\..\worlds\Za warudo]
2019-11-18 20:15:20: ACTION[Main]: Server for gameid="minetest" listening on 0.0.0.0:53623.
2019-11-18 20:15:20: ACTION[Server]: [advtrains]nodedb: read 0 nodes.
2019-11-18 20:15:20: ACTION[Server]: [advtrains][load_all]Loaded advtrains save files
2019-11-18 20:15:24: ERROR[Server]: An unhandled exception occurred: Failed to modify sqlite3 synchronous mode: disk I/O error
2019-11-18 20:15:24: ERROR[Server]: In thread 8:
2019-11-18 20:15:24: ERROR[Server]: /home/stefan/mt-build/build/minetest_64/minetest/src/server.cpp:74: run: A fatal error occurred: Failed to modify sqlite3 synchronous mode: disk I/O error

After a world has this error it will crash when I attempt to open it again.

[Festus1965]

Code: Select all

2019-11-18 20:15:24: ERROR[Server]: An unhandled exception occurred: Failed to modify sqlite3 synchronous mode: disk I/O error
2019-11-18 20:15:24: ERROR[Server]: In thread 8:
2019-11-18 20:15:24: ERROR[Server]: /home/stefan/mt-build/build/minetest_64/minetest/src/server.cpp:74: run: A fatal error occurred: Failed to modify sqlite3 synchronous mode: disk I/O error

the SQLite db is damaged or even the hole disk.
Are you loading the world from another physical or logical. device ?
Check, and if disk ok, try last backup file of SQLite file.

[rubenwardy]

Try restarting your computer, if not then you'll have to use a backup

[talamh]

I have been writing a few map related tools lately, I would be very interested in having a copy of your corrupted map if possible.