Server stop right after Starting ( SEE THE CONSOLE BELOW)

1[01:27:57] [Server thread/INFO]: Starting minecraft server version 1.12.2

2[01:27:57] [Server thread/INFO]: Loading properties

3[01:27:57] [Server thread/INFO]: Default game type: SURVIVAL

4[01:27:57] [Server thread/INFO]: Generating keypair

5[01:27:57] [Server thread/INFO]: Starting Minecraft server on *:10076

6[01:27:57] [Server thread/INFO]: Using epoll channel type

7[01:27:58] [Server thread/INFO]: This server is running CraftBukkit version git-Bukkit-2b93d83 (MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT)

8[01:27:58] [Server thread/INFO]: [Spawner] Loading Spawner v2.8.3-1603e95

9[01:27:58] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!

10[01:27:58] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.

11[01:27:58] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.

12[01:27:58] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.

13[01:27:58] [Server thread/INFO]: Preparing level "world"

14[01:28:00] [Server thread/INFO]: Preparing start region for level 0 (Seed: -3132471201760488043)

15[01:28:01] [Server thread/INFO]: Preparing spawn area: 0%

16[01:28:02] [Server thread/INFO]: Preparing spawn area: 35%

17[01:28:03] [Server thread/INFO]: Preparing spawn area: 79%

18[01:28:04] [Server thread/INFO]: Preparing start region for level 1 (Seed: -5571242515320716056)

19[01:28:05] [Server thread/INFO]: Preparing spawn area: 5%

20[01:28:06] [Server thread/INFO]: Preparing spawn area: 10%

21[01:28:07] [Server thread/INFO]: Preparing spawn area: 16%

22[01:28:08] [Server thread/INFO]: Preparing spawn area: 25%

23[01:28:09] [Server thread/INFO]: Preparing spawn area: 33%

24[01:28:10] [Server thread/INFO]: Preparing spawn area: 42%

25[01:28:11] [Server thread/INFO]: Preparing spawn area: 51%

26[01:28:12] [Server thread/INFO]: Preparing spawn area: 58%

27[01:28:13] [Server thread/INFO]: Preparing spawn area: 68%

28[01:28:14] [Server thread/INFO]: Preparing spawn area: 74%

29[01:28:15] [Server thread/INFO]: Preparing spawn area: 81%

30[01:28:16] [Server thread/INFO]: Preparing spawn area: 89%

31[01:28:17] [Server thread/INFO]: Preparing spawn area: 97%

32[01:28:18] [Server thread/INFO]: Preparing start region for level 2 (Seed: -5571242515320716056)

33[01:28:19] [Server thread/INFO]: Preparing spawn area: 13%

34[01:28:20] [Server thread/INFO]: Preparing spawn area: 34%

35[01:28:21] [Server thread/INFO]: Preparing spawn area: 52%

36[01:28:22] [Server thread/INFO]: Preparing spawn area: 69%

37[01:28:23] [Server thread/INFO]: Preparing spawn area: 89%

38[01:28:23] [Server thread/INFO]: [Spawner] Enabling Spawner v2.8.3-1603e95

39[01:28:23] [Server thread/INFO]: [Spawner] Loading support for v1_12_R1

40[01:28:23] [Server thread/ERROR]: [Spawner] Plugin Spawner v2.8.3-1603e95 has failed to register events for class me.ryvix.spawner.SpawnerEvents because org/bukkit/event/entity/SpawnerSpawnEvent does not exist.

41[01:28:23] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it

42[01:28:23] [Server thread/INFO]: Done (24.950s)! For help, type "help" or "?"

43[01:28:23] [Server thread/INFO]: Starting GS4 status listener

44[01:28:23] [Query Listener #1/INFO]: Query running on **.**.**.**:10076

45[01:28:25] [Server thread/INFO]: Koljo99[/**.**.**.**:55799] logged in with entity id 210 at ([world]-288.00064512064546, 72.61636801183892, -501.9817271719479)

46[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

47[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

48[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

49[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

50[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

51[01:28:25] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

52[01:28:26] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

53[01:28:26] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

54[01:28:26] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

55[01:28:26] [Server thread/ERROR]: Encountered an unexpected exception

56java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0

57 at net.minecraft.server.v1_12_R1.NibbleArray.<init>(SourceFile:16) ~[minecraft_server.jar:git-Bukkit-2b93d83]

58 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:374) ~[minecraft_server.jar:git-Bukkit-2b93d83]

59 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:87) ~[minecraft_server.jar:git-Bukkit-2b93d83]

60 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:65) ~[minecraft_server.jar:git-Bukkit-2b93d83]

61 at org.bukkit.craftbukkit.v1_12_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21) ~[minecraft_server.jar:git-Bukkit-2b93d83]

62 at org.bukkit.craftbukkit.v1_12_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1) ~[minecraft_server.jar:git-Bukkit-2b93d83]

63 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.init(AsynchronousExecutor.java:150) ~[minecraft_server.jar:git-Bukkit-2b93d83]

64 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.initAsync(AsynchronousExecutor.java:95) ~[minecraft_server.jar:git-Bukkit-2b93d83]

65 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.run(AsynchronousExecutor.java:85) ~[minecraft_server.jar:git-Bukkit-2b93d83]

66 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_144]

67 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_144]

68 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]

69[01:28:26] [Server thread/ERROR]: This crash report has been saved to: /aternos/server/./crash-reports/crash-2019-01-15_01.28.26-server.txt

70[01:28:26] [Server thread/INFO]: Stopping server

71[01:28:26] [Server thread/INFO]: [Spawner] Disabling Spawner v2.8.3-1603e95

72[01:28:26] [Server thread/INFO]: Saving players

73[01:28:26] [Server thread/INFO]: Koljo99 lost connection: Server closed

74[01:28:26] [Server thread/INFO]: Koljo99 left the game

75[01:28:26] [Server thread/INFO]: Saving worlds

76[01:28:26] [Server thread/INFO]: Saving chunks for level 'world'/overworld

77[01:28:27] [Server thread/INFO]: Saving chunks for level 'world_nether'/the_nether

78[01:28:30] [Server thread/INFO]: Saving chunks for level 'world_the_end'/the_end

( ALSO THERE ARE NO MODS OR MODPACKS ONLY 1 SPAWNER PLUGIN (BUKKIT) AND I USE TEXTURE PACK BUT MY OTHER 2 SERVERS NEVER CRASH WITH TEXTURE PACK)

Hmmm, I have never set this server to 1.13 and the world is randomly generated while creating the server.
And does "regenerating" the world mean that I will lose the progress and the stuff I built in the world?

EDIT: Ok I downloaded the current world as a backup and I generated a random world, that new world worked but I uploaded this "not working world" and yes the server closes but only after a player joins!

I did that and it worked but only for 10 seconds! I don't know how could the world be from 1.13 and the server 1.12.2 because I play it for almost a year and it worked just fine.
Anyways I will try to change server version and if that doesn't work too I will make a new world

CONSOLE==================================================================================

1[18:27:49] [Server thread/INFO]: Starting minecraft server version 1.12.2

2[18:27:49] [Server thread/INFO]: Loading properties

3[18:27:49] [Server thread/INFO]: Default game type: SURVIVAL

4[18:27:49] [Server thread/INFO]: Generating keypair

5[18:27:50] [Server thread/INFO]: Starting Minecraft server on *:10107

6[18:27:50] [Server thread/INFO]: Using epoll channel type

7[18:27:51] [Server thread/INFO]: This server is running CraftBukkit version git-Bukkit-2b93d83 (MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT)

8[18:27:52] [Server thread/INFO]: [Spawner] Loading Spawner v2.8.3-1603e95

9[18:27:52] [Server thread/WARN]: **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!

10[18:27:52] [Server thread/WARN]: The server will make no attempt to authenticate usernames. Beware.

11[18:27:52] [Server thread/WARN]: While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.

12[18:27:52] [Server thread/WARN]: To change this, set "online-mode" to "true" in the server.properties file.

13[18:27:52] [Server thread/INFO]: Preparing level "world"

14[18:27:55] [Server thread/INFO]: Preparing start region for level 0 (Seed: -3132471201760488043)

15[18:27:58] [Server thread/INFO]: Preparing spawn area: 0%

16[18:27:59] [Server thread/INFO]: Preparing spawn area: 6%

17[18:28:00] [Server thread/INFO]: Preparing spawn area: 46%

18[18:28:01] [Server thread/INFO]: Preparing spawn area: 75%

19[18:28:02] [Server thread/INFO]: Preparing start region for level 1 (Seed: -8901568246881463268)

20[18:28:03] [Server thread/INFO]: Preparing spawn area: 2%

21[18:28:04] [Server thread/INFO]: Preparing spawn area: 4%

22[18:28:05] [Server thread/INFO]: Preparing spawn area: 7%

23[18:28:06] [Server thread/INFO]: Preparing spawn area: 10%

24[18:28:07] [Server thread/INFO]: Preparing spawn area: 13%

25[18:28:09] [Server thread/INFO]: Preparing spawn area: 15%

26[18:28:10] [Server thread/INFO]: Preparing spawn area: 19%

27[18:28:11] [Server thread/INFO]: Preparing spawn area: 23%

28[18:28:12] [Server thread/INFO]: Preparing spawn area: 29%

29[18:28:13] [Server thread/INFO]: Preparing spawn area: 38%

30[18:28:14] [Server thread/INFO]: Preparing spawn area: 43%

31[18:28:15] [Server thread/INFO]: Preparing spawn area: 52%

32[18:28:16] [Server thread/INFO]: Preparing spawn area: 62%

33[18:28:17] [Server thread/INFO]: Preparing spawn area: 71%

34[18:28:18] [Server thread/INFO]: Preparing spawn area: 79%

35[18:28:19] [Server thread/INFO]: Preparing spawn area: 84%

36[18:28:20] [Server thread/INFO]: Preparing spawn area: 90%

37[18:28:21] [Server thread/INFO]: Preparing start region for level 2 (Seed: -8901568246881463268)

38[18:28:22] [Server thread/INFO]: Preparing spawn area: 12%

39[18:28:23] [Server thread/INFO]: Preparing spawn area: 30%

40[18:28:24] [Server thread/INFO]: Preparing spawn area: 40%

41[18:28:26] [Server thread/INFO]: Preparing spawn area: 43%

42[18:28:27] [Server thread/INFO]: Preparing spawn area: 57%

43[18:28:28] [Server thread/INFO]: Preparing spawn area: 74%

44[18:28:29] [Server thread/INFO]: Preparing spawn area: 89%

45[18:28:29] [Server thread/INFO]: [Spawner] Enabling Spawner v2.8.3-1603e95

46[18:28:29] [Server thread/INFO]: [Spawner] Loading support for v1_12_R1

47[18:28:29] [Server thread/ERROR]: [Spawner] Plugin Spawner v2.8.3-1603e95 has failed to register events for class me.ryvix.spawner.SpawnerEvents because org/bukkit/event/entity/SpawnerSpawnEvent does not exist.

48[18:28:29] [Server thread/INFO]: Server permissions file permissions.yml is empty, ignoring it

49[18:28:29] [Server thread/INFO]: Done (37.138s)! For help, type "help" or "?"

50[18:28:29] [Server thread/INFO]: Starting GS4 status listener

51[18:28:29] [Query Listener #1/INFO]: Query running on **.**.**.**:10107

52[18:28:34] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4113ms behind, skipping 82 tick(s)

53[18:29:01] [Server thread/INFO]: Opped Koljo99

54[18:32:13] [Server thread/INFO]: Koljo99[/**.**.**.**:53660] logged in with entity id 211 at ([world]108.5, 64.0, -248.5)

55[18:32:31] [Server thread/INFO]: Koljo99 issued server command: /gamemode 1

56[18:32:31] [Server thread/INFO]: [Koljo99: Set own game mode to Creative Mode]

57[18:32:42] [Chunk I/O Executor Thread-1/WARN]: Could not set level chunk heightmap, array length is 0 instead of 256

58[18:32:42] [Server thread/ERROR]: Encountered an unexpected exception

59java.lang.IllegalArgumentException: ChunkNibbleArrays should be 2048 bytes not: 0

60 at net.minecraft.server.v1_12_R1.NibbleArray.<init>(SourceFile:16) ~[minecraft_server.jar:git-Bukkit-2b93d83]

61 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:374) ~[minecraft_server.jar:git-Bukkit-2b93d83]

62 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:87) ~[minecraft_server.jar:git-Bukkit-2b93d83]

63 at net.minecraft.server.v1_12_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:65) ~[minecraft_server.jar:git-Bukkit-2b93d83]

64 at org.bukkit.craftbukkit.v1_12_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21) ~[minecraft_server.jar:git-Bukkit-2b93d83]

65 at org.bukkit.craftbukkit.v1_12_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1) ~[minecraft_server.jar:git-Bukkit-2b93d83]

66 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.init(AsynchronousExecutor.java:150) ~[minecraft_server.jar:git-Bukkit-2b93d83]

67 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.initAsync(AsynchronousExecutor.java:95) ~[minecraft_server.jar:git-Bukkit-2b93d83]

68 at org.bukkit.craftbukkit.v1_12_R1.util.AsynchronousExecutor$Task.run(AsynchronousExecutor.java:85) ~[minecraft_server.jar:git-Bukkit-2b93d83]

69 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_144]

70 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_144]

71 at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]

72[18:32:43] [Server thread/ERROR]: This crash report has been saved to: /aternos/server/./crash-reports/crash-2019-01-15_18.32.42-server.txt

73[18:32:43] [Server thread/INFO]: Stopping server

74[18:32:43] [Server thread/INFO]: [Spawner] Disabling Spawner v2.8.3-1603e95

75[18:32:43] [Server thread/INFO]: Saving players

76[18:32:43] [Server thread/INFO]: Koljo99 lost connection: Server closed

77[18:32:43] [Server thread/INFO]: Koljo99 left the game

78[18:32:43] [Server thread/INFO]: Saving worlds

79[18:32:43] [Server thread/INFO]: Saving chunks for level 'world'/overworld

80[18:32:44] [Server thread/INFO]: Saving chunks for level 'world_nether'/the_nether

81[18:32:44] [Server thread/INFO]: Saving chunks for level 'world_the_end'/the_end