Missing program data on EPG-Tab (opens in new tab)

I use tvheadend to receive DVB-C in Germany via hdhomerun\. Until recently, all available channels were displayed in the EPG, but now only the public broadcasters \(ARD, ZDF, etc\.\) are shown, not the commercial channels \(RTL, SAT\.1, etc\.\)\. Under \"EPG Grabber Modules,\" EIT: EPG Grabber is enabled\! What is the problem?