World disappeared

On cracked servers players are identified by their username.

Note: It is NOT recommended to use a cracked server

To transfer your player data:

1.) Stop your server (if online).

2.) Go to your world files: https://aternos.org/worlds/ and click on "Files"

3.) Open the "playerdata" folder.

4.) Find the UUID for your old name: https://top-minecraft.com/tools/offline-uuid.php

5.) Download the playerdata file <Old name UUID>.dat (ignore any .dat_old files)

6.) Find the UUID for your new name: https://top-minecraft.com/tools/offline-uuid.php

7.) Rename the downloaded file on your computer from <Old name UUID>.dat to <New name UUID>.dat

8.) Upload the file to your playerdata folder (confirm replacing the file)

9.) Start your server again.

this might help

Quote from Bybarg

Long story short, my friend started a server here with Cracked Mode ON, we played for 2-3 weeks almost everyday, last time was yesterday around 22:00 - 00:00 GMT +3. But today, after starting a server, we couldn't connect to it. My friend checked settings and Cracked Mode was OFF for some reason, so he turned it ON. After that, we could connect to a server, but we spawned on absolutely different spawn and had no items.
We don't have any backups and etc., so yeah, kinda our problem, but is it possible to do anything? Thanks in advance.
ip: Spaaaaacee.aternos.me
Username: same

That's normal if the cracked option is changed.

When running in cracked mode, servers use a different player ID system, which makes them unable to find playerdata files that were created before the option was changed.

Maybe the option was already disabled before? Try disabling it back if you have bought the game.

Quote from Powerful845tiger

On cracked servers players are identified by their username.

Note: It is NOT recommended to use a cracked server

To transfer your player data:

1.) Stop your server (if online).

2.) Go to your world files: https://aternos.org/worlds/ and click on "Files"

3.) Open the "playerdata" folder.

4.) Find the UUID for your old name: https://top-minecraft.com/tools/offline-uuid.php

5.) Download the playerdata file <Old name UUID>.dat (ignore any .dat_old files)

6.) Find the UUID for your new name: https://top-minecraft.com/tools/offline-uuid.php

7.) Rename the downloaded file on your computer from <Old name UUID>.dat to <New name UUID>.dat

8.) Upload the file to your playerdata folder (confirm replacing the file)

9.) Start your server again.

this might help

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That's for people who changed their username on cracked servers, which is not in his case