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You can unban a player here: https://aternos.org/players/banned-players

Or you can unban the player with the command /pardon [name] in the console when your server is online. Open the console here: https://aternos.org/console/

If you've banned the player IP you can unban the player here: https://aternos.org/players/banned-ips

Or you can unban the player with the command "/pardon-ip [ip]" in the console when your server is online. To get the IP address, list all IP bans with the command "/banlist ips". ...

To change your gamemode on a minecraft server use the /gamemode command.

This is how it is used: 

/gamemode <mode> [player]

Example:

/gamemode creative Notch

The available gamemodes are: survival, creative, adventure, spectator . What the different gamemodes are for and what they do exactly is explained here.

The name of the player is only required if you want to change the gamemode for another player or if you use that command from the console.

You have to be OP!

Please note that you have to be ...

Player files contain any player-related data on a server. This includes inventories, achievements, location, etc.

Sometimes it's required to delete someone's player file. Usually if a player got bugged or if someone did some experiments with a player like teleporting him to invalid coordinates.

Deleting someone's player file causes any data related to the player to be reset.

Delete a player file

After stopping your server, go to the Worlds page and open your world files.

Navigate to the