Tvheadend webinterface is not responding

Hello,

since an update my Tvheadend (webinterface and Tvheadend client) is not working. I tried to uninstall and re-install Tvheadend from the shop, but I got an error message while uninstalling on my rasperry pi 3.

Please help me. Also it will be great to save the configuration.

Logfile: https://paste.osmc.tv/lunopexihe

regards
Twinsen