Found and fixed the bug. Will release a 2.3.1 soon.Error while updating Sites. A new installation doesn't help.
does anybody else have a not working ZDF - Mediathek ?
<img\salt="[^"]*"\sclass="[^"]*"\splay="[^"]*"\ssrc="(?<ImageUrl>[^"]*)"\scrop="[^"]*"\s/><span\sclass="thumb__aligner"></span></span></span><span\sclass="thumb__duration">(?<Duration>[^<]*)</span></span>\s*</a>\s*</div>\s*<div\sclass='media__message'>\s*<h4\sclass='h12\stalk-link__speaker'>(?<Description>[^<]*)</h4>\s*<h4\sclass='h9\sm5'>\s*<a\sclass='[^']*'\s*data-ga-context='[^']*'\s*href='(?<VideoUrl>[^']*)'>(?<Title>[^<]*)</a>\s*</h4>\s*<div\sclass='meta'>\s*<span\sclass='meta__item'>\s*Posted\s*<span\sclass='meta__val'>(?<Airdate>[^<]*)</span>