Can't build anyting, project freeze

Just out of nowhere some bug had found me
Every time I build project I get UE freeze and this errors in Swarm:

 21:42:02: [ERROR] Channel already registered, suggesting another SwarmAgent or client is running.
 21:42:02: [ERROR] If you feel this is in error, check your running process list for additional copies of
 21:42:02: [ERROR] SwarmAgent or UnrealLightmass (or other client) and consider killing them.
 21:42:02: [ERROR] Sleeping for a few seconds and trying again...

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