Project Zomboid Host or Server Terminated

Diagnose a Project Zomboid host terminated message from the preceding server log, including mod, memory, port, and database branches.

Preserve the evidence first

Do not repeatedly force-stop the server while it is initializing or downloading Workshop content. Copy the current console file and logs.zip, note the last action, and back up the server save before editing a database or removing content mods.

  1. Reproduce one failed start and keep the complete log from that attempt.
  2. Read upward from the termination line until you reach the first exception, missing item, memory message, port error, or named file.
  3. If a Workshop item or mod is named, confirm its download, dependencies, Mod ID, and server/client load order.
  4. If the log reports memory exhaustion, reduce the mod set or increase appropriate server memory; do not treat it as a file-corruption problem.
  5. If a port is unavailable, stop the other process or correct the server port configuration.
  6. If a particular database or map file is named, back up the server and investigate only that file.

Match one of these branches

  • Missing Workshop item or map dependency: repair the download and required-item chain before restarting.
  • Mod exception during world creation: test a new world with that mod group disabled.
  • Out of memory: adjust memory and reduce load; deleting a save does not address the signature.
  • Port already in use: identify the conflicting server process or configuration.
  • Named database or world file: treat it as a targeted corruption case and preserve a backup before any change.

Sources