Items disapear in imported world

[gui_]

Hi all,

I am trying to run a 24/7 server on an old netbook but the official java server is to heavy for it. Cuberite runs very smoothly, but the problem is that all the items disapeared from the world I imported.

Any clues?

Edit:

Server log errors

Code:

Warn [14:18:39] Block entity type mismatch at {254, 62, 246}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:39] Block entity type mismatch at {254, 62, 245}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:39] Block entity type mismatch at {246, 62, 252}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:39] Block entity type mismatch: exp "Sign", got "minecraft:sign".
Warn [14:18:39] Block entity type mismatch at {288, 64, 253}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch: exp "Sign", got "minecraft:sign".
Info [14:18:41] WorldLoader(world): Block entity mismatch: block type bedblock (26), type "minecraft:bed", at {265, 65, 257}; the entity will be lost.
Info [14:18:41] WorldLoader(world): Block entity mismatch: block type bedblock (26), type "minecraft:bed", at {265, 65, 256}; the entity will be lost.
Warn [14:18:41] Block entity type mismatch at {269, 65, 257}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {269, 65, 256}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {254, 62, 259}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {252, 62, 261}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {251, 62, 261}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {254, 62, 257}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {254, 62, 256}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {249, 62, 261}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {254, 62, 260}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {246, 62, 259}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {246, 62, 257}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {246, 62, 256}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {248, 62, 261}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:41] Block entity type mismatch at {246, 62, 260}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:45] Block entity type mismatch at {242, 63, 290}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:45] Block entity type mismatch at {243, 63, 290}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:48] Block entity type mismatch at {279, 32, 313}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:48] Block entity type mismatch at {274, 32, 312}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:48] Block entity type mismatch at {168, 51, 319}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:50] Block entity type mismatch: exp "MobSpawner", got "minecraft:mob_spawner".
Warn [14:18:50] Block entity type mismatch at {413, 46, 321}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:50] Block entity type mismatch: exp "MobSpawner", got "minecraft:mob_spawner".
Warn [14:18:52] Block entity type mismatch at {245, 33, 337}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:52] Block entity type mismatch at {246, 33, 337}: got "minecraft:chest", expected "Chest". Chest contents will be lost.
Warn [14:18:52] Block entity type mismatch: exp "MobSpawner", got "minecraft:mob_spawner".

think i'm missing something while importing...