Lighting builds failed

Hello!!!
I’m new to Unreal and when I put in lighting needs to be rebuild, I click on build or build lighting only, but the program just says “lighting builds failed”

I have searched all over the internet but I do not see any solution to my problem that must be derived from the swarm agent.

The swarm agent log is this:

18:08:58: Starting up SwarmAgent ...
18:08:58:  ... registering SwarmAgent with remoting service
18:08:58:  ... registering SwarmAgent network channels
18:08:58:  ... initializing SwarmAgent
18:08:58:  ...... checking certificate
18:08:58:  ......... certificate check has failed
18:08:58:  ...... initializing cache
18:08:58:  ......... using cache folder 'C:/Users/Adri/AppData/Local/UnrealEngine/4.21/Saved/Swarm\SwarmCache'
18:08:58:  ......... recreating SwarmAgent cache staging area
18:08:58:  ...... initializing connection to SwarmCoordinator
18:08:58:  ......... using SwarmCoordinator on RENDER-01
18:08:58:  ......... SwarmCoordinator successfully initialized
18:08:58:  ...... initializing local performance monitoring subsystem
18:08:58:  ... initialization successful, SwarmAgent now running
18:09:01: [Interface:TryOpenConnection] Local connection established
18:09:01: [Interface:OpenJob] Error: No encontrado

help please, I’ve tried everything