SOLVED An unexpected error occurred. Please, try again or check the log files

Hello, I'll explain my problem
I just formatted my pc, downloaded CelesteLauncher.zip and installed the base game. But when I try to log in the launcher, this error appears: "An unexpected error occurred. Please, try again or check the log files".

Some data:
- CelesteLauncher.zip is extracted in my documents. (I don't use the Steam version)
- I have downloaded all the files listed in the "Troubleshooting" section of the page https://www.projectceleste.com/install/ (except Windows Universal CRT, since I use Win10)
- DirectPlay is active

Edit:
- When i click on "play offline" it starts to download the files normally
- When i try to send reset key (to reset my password) an error ocurred again.

The log:
2022-02-11 11:54:16.685 -03:00 [INF] Initializing bootstrapper
2022-02-11 11:54:16.768 -03:00 [INF] User config loaded from C:\Users\M47\Documents\CelesteLauncher\CelesteConfig.xml
2022-02-11 11:54:16.771 -03:00 [INF] No game path is set
2022-02-11 11:54:16.771 -03:00 [INF] IsSteamVersion: false
2022-02-11 11:54:16.775 -03:00 [INF] Initialized web socket
2022-02-11 11:54:16.775 -03:00 [INF] Initializing fingerprint provider
2022-02-11 11:54:16.784 -03:00 [INF] Localized UI language to English (United States)
2022-02-11 11:54:16.784 -03:00 [INF] Bootstrapper initialized
2022-02-11 11:54:32.788 -03:00 [INF] Stored credentials is null: true
2022-02-11 11:54:32.789 -03:00 [INF] Performing login with entered credentials
2022-02-11 11:54:32.798 -03:00 [DBG] Initializing web socket
2022-02-11 11:54:32.814 -03:00 [INF] Attempting to connect to wss://ns544971.ip-66-70-180.net:4513/
2022-02-11 11:54:34.384 -03:00 [ERR] RemoteCertificateNameMismatch
System.Exception: RemoteCertificateNameMismatch
2022-02-11 11:54:34.386 -03:00 [DBG] Web socket closed
2022-02-11 11:54:34.387 -03:00 [ERR] Server Offline!
System.Exception: Server Offline!
at Celeste_Public_Api.WebSocket_Api.WebSocket.Client.<DoConnect>d__17.MoveNext() in D:\a\1\s\Libs\Celeste_Public_Api\WebSocket_Api\WebSocket\Client.cs:line 96
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Celeste_Public_Api.WebSocket_Api.WebSocketApi.<Connect>d__24.MoveNext() in D:\a\1\s\Libs\Celeste_Public_Api\WebSocket_Api\WebSocketApi.cs:line 89
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Celeste_Public_Api.WebSocket_Api.WebSocketApi.<DoLogin>d__26.MoveNext() in D:\a\1\s\Libs\Celeste_Public_Api\WebSocket_Api\WebSocketApi.cs:line 113
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Celeste_Launcher_Gui.Pages.LoginPage.<PerformLogin>d__4.MoveNext() in D:\a\1\s\Celeste_Launcher_Gui\Pages\LoginPage.xaml.cs:line 140
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Celeste_Launcher_Gui.Pages.LoginPage.<PerformLogin>d__3.MoveNext() in D:\a\1\s\Celeste_Launcher_Gui\Pages\LoginPage.xaml.cs:line 94
2022-02-11 11:54:34.408 -03:00 [ERR] The remote certificate is invalid according to the validation procedure.
System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.
at System.Net.Security.SslState.InternalEndProcessAuthentication(LazyAsyncResult lazyResult)
at System.Net.Security.SslState.EndProcessAuthentication(IAsyncResult result)
at SuperSocket.ClientEngine.SslStreamTcpSession.OnAuthenticated(IAsyncResult result)

 

UPDATE: I'm dumb... my launcher was outdated. Now I can log in, and the files are downloading normally.