I was playing the game and it crashed mid game with a fatal error, and now whenever i want  to play it has an error and does not work

NullReferenceException: Object reference not set to an instance of an object
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PlayerControllerRepository.SetActivePlayerController (.PlayerController playerController)
GameClientState_GameLaunched.Begin (System.Object[] parameters)
Amplitude.Unity.Framework.FiniteStateMachine.Update ()
GameInterface.Update ()
Session.Update ()
Amplitude.Unity.Session.SessionManager.LateUpdate ()

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V1.5.7 S3  (64-bit)

Did you try these workarounds ? https://www.games2gether.com/endless-legend/forum/13-tech-support/thread/5394-read-first-common-issues-guides-and-solutions

PyroTitan wrote:

I was playing the game and it crashed mid game with a fatal error, and now whenever i want  to play it has an error and does not work

NullReferenceException: Object reference not set to an instance of an object
--------------------------------------------------------------------------------
PlayerControllerRepository.SetActivePlayerController (.PlayerController playerController)
GameClientState_GameLaunched.Begin (System.Object[] parameters)
Amplitude.Unity.Framework.FiniteStateMachine.Update ()
GameInterface.Update ()
Session.Update ()
Amplitude.Unity.Session.SessionManager.LateUpdate ()

--------------------------------------------------------------------------------
V1.5.7 S3  (64-bit)

Please do not open several threads on the same issue. It doesn't help ...

I answered on your thread here : https://www.games2gether.com/endless-legend/forum/13-tech-support/thread/23041-someone-pls-help-me-fix-this

Let's continue troubleshooting there ^^