This is the error log
SSEI v15.2002.4709.1
(01) 2021-08-26 09:32:32 CorrelationId: 35fa08e3-c7ef-4796-b047-5d5e6adbb9d2
(01) 2021-08-26 09:32:32 CurrentCulture.Name='en-US'.LCID='1033'.Parent.Name='en'
(01) 2021-08-26 09:32:32 CurrentUICulture.Name='en-US'.LCID='1033'.Parent.Name='en'
(01) 2021-08-26 09:32:32 supported culture detected ='en-US'.
(01) 2021-08-26 09:32:32 resolvedCulture: en-US
(01) 2021-08-26 09:32:32 osSupported: True, osVersion: 10.0.17763.0, osPlatform: amd64
(08) 2021-08-26 09:32:32 .NET Framework Version: 4.5
(08) 2021-08-26 09:32:32 StartupBootstrapActivity:SSEIActivityStart:Message: Starting Activity StartupBootstrapActivity
(08) 2021-08-26 09:32:32 StartupBootstrapActivity:SSEIProgressReport:ProgressPercent: 1
(08) 2021-08-26 09:32:33 Exception: IsTransientException: False, Message: The underlying connection was closed: An unexpected error occurred on a receive.,
(08) 2021-08-26 09:32:33 StartupBootstrapActivity:SSEIProgressReport:ProgressPercent: 100
(08) 2021-08-26 09:32:33 StartupBootstrapActivityFatalException: Message: ManifestNotFound
(08) 2021-08-26 09:32:33 StartupBootstrapActivity:SSEIActivityMessage:Message: A required file could not be downloaded. This could mean the version of the installer is no longer supported. Please download again from the download site.
(08) 2021-08-26 09:32:33 StartupBootstrapActivity:SSEIProgressReport:ProgressPercent: 100
(08) 2021-08-26 09:32:33 StartupBootstrapActivity:SSEIActivityEnd:Message: Finishing Activity StartupBootstrapActivity
(08) 2021-08-26 09:32:33 Activity Summaries for Scenario [InitializeBootstrapManifest]
(08) 2021-08-26 09:32:33 ActivityName Outcome WasCancelled DurationSeconds
(08) 2021-08-26 09:32:33 StartupBootstrapActivity 0 0 0.3520869
(08) 2021-08-26 09:32:33 Failed to initialize application: Microsoft.Sql.Installer.Engine.FatalActivityException: A required file could not be downloaded. This could mean the version of the installer is no longer supported. Please download again from the download site.
at Microsoft.Sql.Installer.Engine.StartupBootstrapActivity.RunActivity()
at Microsoft.Sql.Installer.Engine.SetupEngine.ExecuteActivity(ActivityBase activity)
at Microsoft.Sql.Installer.Engine.SetupEngine.ExecuteSetup()
at Microsoft.Sql.Installer.Engine.ManifestCache.InitializeBootstrapManifest(String edition)
at Microsoft.Sql.Installer.Engine.ManifestCache.Initialize(String edition, Boolean skipBootstrapInitialization)
at Microsoft.Sql.Installer.UI.SSEIBusinessLogic.Initialize(String edition)
at Microsoft.Sql.Installer.UI.ViewModels.StartPageViewModel.InitializePage()
(08) 2021-08-26 09:32:33 AppInitializationFatalException: ExceptionMessage: A required file could not be downloaded. This could mean the version of the installer is no longer supported. Please download again from the download site. TypeName: FatalActivityException StackTrace: at Microsoft.Sql.Installer.Engine.StartupBootstrapActivity.RunActivity()
at Microsoft.Sql.Installer.Engine.SetupEngine.ExecuteActivity(ActivityBase activity)
at Microsoft.Sql.Installer.Engine.SetupEngine.ExecuteSetup()
at Microsoft.Sql.Installer.Engine.ManifestCache.InitializeBootstrapManifest(String edition)
at Microsoft.Sql.Installer.Engine.ManifestCache.Initialize(String edition, Boolean skipBootstrapInitialization)
at Microsoft.Sql.Installer.UI.SSEIBusinessLogic.Initialize(String edition)
at Microsoft.Sql.Installer.UI.ViewModels.StartPageViewModel.InitializePage()