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minecraft/docs/troubleshooting.md
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Aryan SinghandClaude Fable 5 85414391b0 Disable enforce-secure-profile so offline-launcher players can join
EasyAuth flagged it at startup: with enforce-secure-profile on (vanilla
default), TLauncher/offline clients are rejected before they can even
authenticate. Set ENFORCE_SECURE_PROFILE=FALSE on the mc service and
document the symptom in troubleshooting.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-10 12:34:02 -05:00

3.1 KiB

Troubleshooting

Server won't start

Check the Console page first (or docker logs mc --tail 100).

Symptom in logs Fix
EULA complaints EULA=TRUE is set by compose — make sure you didn't override it
A mod failed to resolve for your version Remove that slug on the Mods page, Apply. (New MC version + mod hasn't updated yet.)
No candidate versions of '<mod>' … matched versionType=release The mod only ships beta builds for this MC version — append :beta to its entry in MODRINTH_PROJECTS (e.g. easyauth:beta) and docker compose up -d mc
OutOfMemoryError Lower MC_VIEW_DISTANCE, or raise MC_MEMORY/MC_CONTAINER_MEM_LIMIT if the host has headroom
Port already in use Something else on 25565 — change MC_PORT in .env
Crash right after "Done" A mod conflict — disable recently added jars (Mods page → power icon)

A friend can't join

Work down this list:

  1. "Not whitelisted" → their username isn't approved (or the window expired and auto-revoked them). Access & Auth → approve/re-open. Username must match exactly (case matters in TLauncher).
  2. Kicked with a "secure profile" / "invalid signature" style error → enforce-secure-profile must be false for offline launchers. The compose file sets ENFORCE_SECURE_PROFILE: "FALSE"; if you edited server.properties by hand, make sure enforce-secure-profile=false.
  3. Joins but immediately kicked → they didn't /register or /login in time — EasyAuth kicks unauthenticated players after a timeout. Tell them to type faster or raise the timeout in config/EasyAuth/.
  4. "Connection timed out" → networking: is 25565 port-forwarded? Are they using your public IP? Does docker compose ps show mc healthy?
  5. Wrong password loop → Access & Auth → Reset password, share the temporary one privately.

Panel shows "Offline" but the server is up

The dashboard container can't reach the Docker socket or RCON:

docker compose ps                      # is mc-dashboard running?
docker logs mc-dashboard --tail 50
docker compose up -d --force-recreate dashboard

If you changed RCON_PASSWORD in .env, Apply/recreate both mc and dashboard so they agree.

Forgot the panel password

docker compose stop dashboard
rm data/dashboard/craftdeck.db        # wipes panel users/settings/history — NOT the world
# set PANEL_ADMIN_PASSWORD in .env to a fresh value
docker compose up -d dashboard

Player approvals are re-importable afterwards (Access & Auth → Import whitelist).

Lag

Performance & Lag page tells you who is lagging (server vs a player's connection). If it's the server: check the CPU/memory charts, run the spark health report, lower view/simulation distance, or add more RAM. If it's one player: it's their network — nothing to fix server-side.

Disk filling up

Backups page shows total backup size; lower BACKUP_RETENTION_DAYS. The panel also raises a low-disk alert below 2 GB free.

Nuke everything and start over (keeps nothing)

docker compose down
rm -rf data
./scripts/setup.sh && docker compose up -d