Maybe im Stupid but im not able to bring up any type of Server

[Effendil]

Here is what it get with PAPER:

[init] ERROR: failed to download paper
Exception in thread "main" java.lang.ExceptionInInitializerError
at reactor.netty.http.client.HttpClient.create(HttpClient.java:411)
at me.itzg.helpers.http.SharedFetch.(SharedFetch.java:57)
at me.itzg.helpers.http.Fetch.sharedFetch(Fetch.java:21)
at me.itzg.helpers.paper.PaperDownloadsClient.(PaperDownloadsClient.java:22)
at me.itzg.helpers.paper.InstallPaperCommand.call(InstallPaperCommand.java:104)
at me.itzg.helpers.paper.InstallPaperCommand.call(InstallPaperCommand.java:35)
at picocli.CommandLine.executeUserObject(CommandLine.java:2041)
at picocli.CommandLine.access$1500(CommandLine.java:148)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2461)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2453)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2415)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2273)
at picocli.CommandLine$RunLast.execute(CommandLine.java:2417)
at picocli.CommandLine.execute(CommandLine.java:2170)
at me.itzg.helpers.McImageHelper.main(McImageHelper.java:157)
Caused by: java.lang.NumberFormatException: For input string: "undefined"
at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
at java.base/java.lang.Integer.parseInt(Integer.java:668)
at java.base/java.lang.Integer.parseInt(Integer.java:786)
at reactor.netty.http.client.HttpClientConnect.(HttpClientConnect.java:704)
... 15 more

Thats my Environment:
VERSION=LATEST
TYPE=PAPER
PAPERBUILD=318
SERVER_NAME=Testserver
MOTD=
ICON=https://cdn.berksmbl.com/easypanel-icon.png
MODE=survival
DIFFICULTY=hard
MAX_PLAYERS=200
MAX_WORLD_SIZE=10000
VIEW_DISTANCE=16
MAX_BUILD_HEIGHT=256
MAX_TICK_TIME=60000
EULA=true
ALLOW_NETHER=true
ANNOUNCE_PLAYER_ACHIEVEMENTS=true
GENERATE_STRUCTURES=true
PVP=true
FORCE_GAMEMODE=false
HARDCORE=false
ENABLE_COMMAND_BLOCK=true
SPAWN_ANIMALS=true
SPAWN_MONSTERS=true
SPAWN_NPCS=true
SNOOPER_ENABLED=false
ONLINE_MODE=false
ENABLE_RCON=false
ENABLE_QUERY=false
SERVER_PORT=25566

[itzg]

Sorry for the delay on this. I'm out of town so have only been able to glance at code from my phone. With that said, I'm not finding an obvious cause for the error you're seeing. It's as if an environment variable has the literal value "undefined" somewhere in the container, but wasn't in the ones you listed.

[itzg]

You need to re-pull the latest image and also set VERSION to "1.20.2" since PaperMC hasn't yet released builds for 1.20.4.