vsix 2019 not working

[shmsoon]

10/21/2020 3:42:51 AM - Microsoft VSIX Installer
10/21/2020 3:42:51 AM - -------------------------------------------
10/21/2020 3:42:51 AM - vsixinstaller.exe version:
10/21/2020 3:42:51 AM - 16.7.3069
10/21/2020 3:42:51 AM - -------------------------------------------
10/21/2020 3:42:51 AM - Command line parameters:
10/21/2020 3:42:51 AM - C:\Program Files (x86)\Microsoft Visual Studio\Installer\resources\app\ServiceHub\Services\Microsoft.VisualStudio.Setup.Service\VSIXInstaller.exe,C:\Users\shmsoon\Downloads\errorlens-3.2.1_vsixhub.com.vsix
10/21/2020 3:42:51 AM - -------------------------------------------
10/21/2020 3:42:51 AM - Microsoft VSIX Installer
10/21/2020 3:42:51 AM - -------------------------------------------
10/21/2020 3:42:52 AM - System.NullReferenceException: Object reference not set to an instance of an object.
at VSIXInstaller.SetupExtensions.GetLaunchableInstances(IQuery query)
at VSIXInstaller.SupportedSKUs.EnumerateIsolatedInstalls(Action`1 callback)
at VSIXInstaller.SupportedSKUs.AddInstalledLocationBasedSKUs(IntPtr userToken)
at VSIXInstaller.SupportedSKUs.InitializeSupportedSKUs(IntPtr userToken)
at VSIXInstaller.ExtensionService.InitializeSupportedSKUs(ICommandLineData cmdLineData, IntPtr duplicatedUserToken)
at VSIXInstaller.App.Initialize(Boolean isRepairSupported)
at VSIXInstaller.App.Initialize()
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.VisualStudio.Telemetry.WindowsErrorReporting.WatsonReport.GetClrWatsonExceptionInfo(Exception exceptionObject)

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