Downloading source code forbidden from Volo.LeptonTheme #3274

ABP Suite on 5.3.0

It says in the image that I should be able to download the module's source code. but the logs state that it's forbidden (https://abp.io/api/download/module/ returns 403)

Logs:

[12:36:10 INF] ABP CLI (https://abp.io)
[12:36:10 INF] Version 5.3.0 (Stable)
Starting Suite v5.3.0 ...
Opening http://localhost:3000
Press Ctrl+C to shut down.
Error occured while downloading source-code from https://abp.io/api/download/module/ : StatusCode: 403, ReasonPhrase: 'Forbidden', Version: 1.1, Content: System.Net.Http.HttpConnectionResponseContent, Headers:
{
  Date: Sat, 18 Jun 2022 10:40:11 GMT
  Transfer-Encoding: chunked
  Connection: keep-alive
  Cache-Control: no-cache,no-store
  Pragma: no-cache
  Set-Cookie: ####### OMITTED #######
  Strict-Transport-Security: max-age=2592000
  X-Frame-Options: SAMEORIGIN
  X-Powered-By: ARR/3.0
  X-Powered-By: ASP.NET
  CF-Cache-Status: DYNAMIC
  Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
  Report-To: {"endpoints":[{"url":"####### OMITTED #######"}],"group":"cf-nel","max_age":604800}
  NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
  Server: cloudflare
  CF-RAY: ####### OMITTED #######
  Content-Type: text/html; charset=utf-8
  Expires: -1
}
'<' is an invalid start of a value. Path: $ | LineNumber: 1 | BytePositionInLine: 0.
[12:40:11 ERR] Error occured while getting the source code for Volo.LeptonTheme v5.2.2 - System.Text.Json.JsonException: '<' is an invalid start of a value. Path: $ | LineNumber: 1 | BytePositionInLine: 0.
 ---> System.Text.Json.JsonReaderException: '<' is an invalid start of a value. LineNumber: 1 | BytePositionInLine: 0.
   at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
   at System.Text.Json.Utf8JsonReader.ConsumeValue(Byte marker)
   at System.Text.Json.Utf8JsonReader.ReadFirstToken(Byte first)
   at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
   at System.Text.Json.Utf8JsonReader.Read()
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   --- End of inner exception stack trace ---
   at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, JsonReaderException ex)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 utf8Json, JsonTypeInfo jsonTypeInfo, Nullable`1 actualByteCount)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 json, JsonTypeInfo jsonTypeInfo)
   at System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonSerializerOptions options)
   at Volo.Abp.Json.SystemTextJson.AbpSystemTextJsonSerializerProvider.Deserialize[T](String jsonString, Boolean camelCase) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Json\Volo\Abp\Json\SystemTextJson\AbpSystemTextJsonSerializerProvider.cs:line 35
   at Volo.Abp.Json.AbpHybridJsonSerializer.Deserialize[T](String jsonString, Boolean camelCase) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Json\Volo\Abp\Json\AbpHybridJsonSerializer.cs:line 37
   at Volo.Abp.Cli.ProjectBuilding.RemoteServiceExceptionHandler.GetAbpRemoteServiceErrorAsync(HttpResponseMessage responseMessage) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\ProjectBuilding\RemoteServiceExceptionHandler.cs:line 52
   at Volo.Abp.Cli.ProjectBuilding.RemoteServiceExceptionHandler.EnsureSuccessfulHttpResponseAsync(HttpResponseMessage responseMessage) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\ProjectBuilding\RemoteServiceExceptionHandler.cs:line 38
   at Volo.Abp.Cli.ProjectBuilding.AbpIoSourceCodeStore.DownloadSourceCodeContentAsync(SourceCodeDownloadInputDto input) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\ProjectBuilding\AbpIoSourceCodeStore.cs:line 251
   at Volo.Abp.Cli.ProjectBuilding.AbpIoSourceCodeStore.GetAsync(String name, String type, String version, String templateSource, Boolean includePreReleases) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\ProjectBuilding\AbpIoSourceCodeStore.cs:line 119
   at Volo.Abp.Cli.ProjectBuilding.ModuleProjectBuilder.BuildAsync(ProjectBuildArgs args) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\ProjectBuilding\ModuleProjectBuilder.cs:line 48
   at Volo.Abp.Cli.Commands.Services.SourceCodeDownloadService.DownloadModuleAsync(String moduleName, String outputFolder, String version, String gitHubAbpLocalRepositoryPath, String gitHubVoloLocalRepositoryPath, AbpCommandLineOptions options) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\Commands\Services\SourceCodeDownloadService.cs:line 40
   at Volo.Abp.Cli.Commands.GetSourceCommand.ExecuteAsync(CommandLineArgs commandLineArgs) in D:\ci\Jenkins\workspace\abp-commercial-release\abp\framework\src\Volo.Abp.Cli.Core\Volo\Abp\Cli\Commands\GetSourceCommand.cs:line 64
   at Volo.Abp.Suite.Controllers.AbpSuiteController.GetSourceAsync(GetSourceInput input)

Is this a bug in UI (meaning I am really not allowed) or may the issue lie somewhere else?

Thank you for your efforts :)