Error in whois.Lookup

[BroggiQ]

Hi,
I have an error when I call WhoisResponse response = whois.Lookup("Outbrain.com"); , but it's works with all other sites.

Error:

Error whilst reading data: Unable to read data from the transport connection: An existing connection must be closed by the remote host.
Please log issues at:
https://github.com/flipbit/whois/issues

Stacktrace:
at Whois.Net.TcpReader.Read(StringBuilder sb)
at Whois.Net.TcpReader.Read(String url, Int32 port, String command, Encoding encoding)
at Whois.Net.TcpReader.Read(String url, Int32 port, String command, Encoding encoding, Int32 timeoutSeconds)
at Whois.WhoisLookup.Download(String url, WhoisRequest request)
at Whois.WhoisLookup.LookupAsync(WhoisRequest request)
at Whois.WhoisLookup.Lookup(String domain)
at Program.VisitSite(WebCrawler webCrawler, ScreenshotTaker screenshotTaker, String site) in C:\Users\Akutsu\source\repos\PhishProtector\PhishExplorer\Program.cs:line 82