Tvheadend

Hi,

I have been successfully using tvheadend to stream my IPTV service to Plex for some time now but in the last few weeks I have not been able to get it to work anymore? I have changed nothing, re-added the IPTV URL but all the scans fail? I can use the IPTV line on Perfect Player or SIPTV with no issues its just tvheadend that won't deal with it anymore? I have completely uninstalled and re-installed but still the same problem? all my services scan with these errors.

018-01-25 02:05:49.413 subscription: 0079: "scan" unsubscribing
2018-01-25 02:05:49.677 mpegts: ED55AA5953E1384A1229EABA27055488 - UK : SKY REAL LIVES in lamblamb - scan no data, failed
2018-01-25 02:05:49.677 subscription: 0078: "scan" unsubscribing
2018-01-25 02:05:50.655 mpegts: ED55AA5953E1384A1229EABA27055488 - UK : DISCOVERY HD in lamblamb - tuning on IPTV
2018-01-25 02:05:50.655 subscription: 007B: "scan" subscribing to mux "ED55AA5953E1384A1229EABA27055488 - UK : DISCOVERY HD", weight: 6, adapter: "IPTV", network: "lamblamb", service: "Raw PID Subscription"
2018-01-25 02:05:50.655 mpegts: ED55AA5953E1384A1229EABA27055488 - UK : TLC HD in lamblamb - tuning on IPTV
2018-01-25 02:05:50.655 subscription: 007C: "scan" subscribing to mux "ED55AA5953E1384A1229EABA27055488 - UK : TLC HD", weight: 6, adapter: "IPTV", network: "lamblamb", service: "Raw PID Subscription"
2018-01-25 02:05:50.843 libav: AVBSFContext: Invalid NAL unit 0, skipping.
2018-01-25 02:05:50.892 libav: AVBSFContext: Invalid NAL unit 0, skipping.