Cannot logon in Trados Studio 2021, and so erros arise on plugins update

<SDLErrorDetails time="13/11/2021 8:18:34">
  <ErrorMessage>Error de conexión a Language Cloud.</ErrorMessage>
  <Exception>
    <Type>Sdl.BestMatchService.Common.Exceptions.LanguageCloudException, Sdl.BestMatchService.Common, Version=16.0.0.0, Culture=neutral, PublicKeyToken=c28cdb26c445c888</Type>
    <ErrorCode>GENERIC_APPLICATION_EXCEPTION</ErrorCode>
    <ErrorMessage>An error occured while processing your request!</ErrorMessage>
    <HelpLink />
    <Source>Sdl.BestMatchService.Common</Source>
    <HResult>-2146233088</HResult>
    <StackTrace><![CDATA[   en Sdl.BestMatchService.Common.ApiClientErrorHandler.HandleOtherStatusCodes(ApiErrorResponse response)
   en Sdl.BestMatchService.Common.ApiClientErrorHandler.HandleError(ApiErrorResponse errorResponse)
   en Sdl.BestMatchService.Common.AbstractApiClient.HandleError(HttpResponseMessage response)
   en Sdl.BestMatchService.Common.AbstractApiClient.HandleServerResponse[T](HttpResponseMessage response)
   en Sdl.BestMatchService.Common.Client.RemoteUserServiceClient.GetAccounts()
   en Sdl.BestMatchServiceStudioIntegration.Common.Account.UI.Views.LoginViewModel.ShowTenants(ExtractedAuthorizationCodeEvent e)]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>Trados Studio</ProductName>
    <ProductVersion>Studio16</ProductVersion>
    <EntryAssemblyFileVersion>16.2.8.9097</EntryAssemblyFileVersion>
    <OperatingSystem>Microsoft Windows 10 Pro</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>3082</OperatingSystemLanguage>
    <CodePage>1252</CodePage>
    <LoggedOnUser>DESKTOP-NLEAU76\JESUS</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>DESKTOP-NLEAU76</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>67011808 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>