Oznzb search -data at the root level is invalid

Hi guys
recently started a manual search via the “search all missing” button under the wanted menu. I noticed then under the console/logs the following:

Message:

An error occurred while processing feed. https://www.oznzb.com/api?t=tvsearch&cat=5030,5040&extended=1&apikey=&offset=0&limit=100&rid=4802&season=5&ep=24: Data at the root level is invalid. Line 1, position 1.

Exception:

System.Xml.XmlException: Data at the root level is invalid. Line 1, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String arg)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XDocument.Parse(String text, LoadOptions options)
at NzbDrone.Core.Indexers.Newznab.NewznabRssParser.PreProcess(IndexerResponse indexerResponse) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Indexers\Newznab\NewznabRssParser.cs:line 16
at NzbDrone.Core.Indexers.RssParser.ParseResponse(IndexerResponse indexerResponse) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Indexers\RssParser.cs:line 40
at NzbDrone.Core.Indexers.HttpIndexerBase1.FetchPage(IndexerRequest request, IParseIndexerResponse parser) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Indexers\HttpIndexerBase.cs:line 197 at NzbDrone.Core.Indexers.HttpIndexerBase1.FetchReleases(IList`1 pageableRequests) in m:\BuildAgent\work\6c3239faf2b92630\src\NzbDrone.Core\Indexers\HttpIndexerBase.cs:line 129

Checking under Oznzb, API hits is 1 and grabs is zero, while the search was for over 6000 episodes.

any ideas as to what could be the cause?

thx

leaving this here for future reference. seems like their API URL has changed from
https://www.oznzb.com
to
https://api.oznzb.com

working fine now

Thanks for the info!