Error reading package

System.InvalidOperationException: The given header was not found.
   at System.Net.Http.Headers.HttpHeaders.GetValues(HeaderDescriptor descriptor)
   at FuGetGallery.PackageData.ReadEntriesAsync(HttpClient client, String file)
   at FuGetGallery.PackageData.ReadAsync(HttpClient httpClient, String packageUri) in /home/runner/work/FuGetGallery/FuGetGallery/Data/PackageData.cs:line 303
   at FuGetGallery.PackageData.PackageDataCache.ReadPackageFromUrl(PackageData package, HttpClient httpClient, CancellationToken token) in /home/runner/work/FuGetGallery/FuGetGallery/Data/PackageData.cs:line 600
   at FuGetGallery.PackageData.PackageDataCache.GetValueAsync(String arg0, PackageVersion arg1, HttpClient httpClient, CancellationToken token) in /home/runner/work/FuGetGallery/FuGetGallery/Data/PackageData.cs:line 576