Game Servers
Server will not start / "unexpected error"
A checklist for when a Victus server refuses to start or the panel shows an unexpected error — read the console, check the EULA, ports, memory and the JAR.
minecraftwont startunexpected errorcrashtroubleshootingconsole
When a server will not start, the answer is almost always in the Console tab. The panel replays the last output, and the reason it stopped (EULA, port, memory, a bad config, or the wrong JAR) is usually in the final lines. Work through this checklist top to bottom before opening a ticket.
Read the console first
- 1Open the Console tab and scroll to the very last lines before it stopped.
- 2Look for a specific error keyword: "eula", "already allocated", "OutOfMemoryError", "Failed to bind", or a stack trace naming a plugin/mod.
- 3Match the keyword to the fixes below.
Common causes and fixes
| What the console shows | Fix |
|---|---|
| You need to agree to the EULA | Set eula=true — see "You must accept the EULA". |
| Port is already allocated / Failed to bind | A stale process or wrong port — see the "Port is already allocated" article. |
| java.lang.OutOfMemoryError | Not enough RAM or a leak — see "Out of memory / server keeps crashing". |
| Error occurred during initialization of VM | The version needs a newer Java than the egg provides — lower your MC version or check the Startup Java setting. |
| Exception in a plugin/mod (stack trace) | A broken or wrong-version add-on — remove the last thing you added. |
If it is "unexpected error" in the panel (not a Minecraft error)
- This usually means the daemon could not run the container — do a full Stop, then Kill (Console power menu), then Start.
- Confirm the service is not suspended. Check Victus Billing for paid invoices; for a free server, check the renewal status and deadline directly in Victus Panel.
- Check the Startup tab — a blank or invalid JAR/version variable stops the container from launching.
Blame the last change
If it worked yesterday and not today, whatever you changed last (a plugin, a config edit, a version bump) is the prime suspect. Undo that single change and try again.
Still stuck?
Copy the last ~20 lines of the console and open a Discord support ticket (or use the on-site support widget). The log text lets staff diagnose it far faster than "it won't start".
Related in Game Servers
Create your first Minecraft serverOrder a Minecraft server on Victus, choose your software (egg) and version, then start it in the panel and connect your client.You must accept the EULAMinecraft refuses to run until you accept Mojang's EULA. Set eula=true in eula.txt via the Files tab, then restart."Port is already allocated" fixFix "Failed to bind" / "port is already allocated" on a Victus Minecraft server — align server.properties with your panel allocation and clear stale processes.Out of memory / server keeps crashingDiagnose OutOfMemoryError and repeated crashes on a Victus Minecraft server — right-size RAM, cut memory-hungry settings, and find the plugin/mod at fault.Low TPS and lag (how to fix)Fix lag and low TPS on a Victus Minecraft server — measure TPS, tune view/simulation distance, control entities, and switch to Paper/Purpur.Install pluginsAdd Bukkit/Spigot/Paper plugins to a Victus server — upload the .jar to the plugins folder via the Files tab or SFTP and restart.Install mods (Forge/Fabric)Run Forge or Fabric mods on a Victus server — put mods in the mods folder, match the loader/version, and install the same mods on your client.Change the Minecraft versionChange the Minecraft version of a Victus server from the Startup tab, back up first, and update your plugins/mods to match.Switch software/JAR (Paper/Purpur/Spigot/Vanilla)Change your Victus server between Paper, Purpur, Spigot, Vanilla, Fabric, Forge or Velocity — via the Startup variables or an egg change, backing up first.Upload files via SFTPConnect to your Victus server with an SFTP client to upload worlds, plugins and modpacks fast — using the host, port and username from the panel.Set up a whitelistRestrict your Victus Minecraft server to approved players — enable the whitelist from the console and add players by name.Change the MOTD and server iconCustomise your Victus server listing — edit the MOTD in server.properties (with colour codes) and add a 64x64 server-icon.png.Make yourself op/adminGrant yourself full admin rights on a Victus Minecraft server with the op command from the console — plus notes on Vanilla op levels and plugin permissions.Schedule automatic restartsUse the Schedules tab on Victus to automatically restart your Minecraft server on a cron schedule, keeping TPS healthy and memory clean.Create and restore backupsProtect your world on Victus — create manual or scheduled backups from the Backups tab and restore them when something breaks.Add sub-users (co-owners)Share panel access to your Victus server without giving away your login — add subusers on the Users tab and grant only the permissions they need.Reset the worldGenerate a fresh world on a Victus Minecraft server — back up, delete or rename the world folders, optionally set a new seed, and restart.Using the consoleUse the Victus panel Console tab to read logs, run Minecraft commands, and control power (start/stop/restart/kill) on your server.