# FiveM OneSync Error – Fix Population, Infinity & server.cfg

FiveM OneSync errors: "OneSync not enabled", invisible players, population limit, Infinity – server.cfg, txAdmin & artifacts step by step.

**Quick answer:** Fix FiveM OneSync errors with `onesync on` or `onesync_enableInfinity true` in **server.cfg**, correct **population** and current **artifacts**.

**If you landed here:** Console shows "OneSync not enabled", players invisible, population limit not working or Infinity fails.

## Error → fix

Symptom / logFix

OneSync not enabled`onesync on` in server.cfg, full restart

Population not workingtxAdmin → Settings → enable OneSync Population

Infinity unavailable`onesync_enableInfinity true` + latest artifacts

Players invisibleEnable OneSync, update framework, clear cache

## Related

- [Configure OneSync](/en/gameserver/fivem/performance-optimierung/onesync-configure)
- [FiveM server lagging](/en/gameserver/fivem/server-laggt)
- [FiveM won't start](/en/gameserver/fivem/server-startet-nicht)