DVR Setup Stuck

Thanks for help.
After enabling debug logging and restarting the PMS again, channel scanning was succesfull (90 channels found), but in next step (EPG guide) it’s impossible to continue, because CONTINUE (or NEXT?, don’t know exactly, my PMS runs in czech language) is greyed out, no “location” field available, just “langueage”. Tried to select few languages, but no change.
Plex path in text
http://127.0.0.1:32400/web/index.html#!/settings/server/ec34b10813769c1b273e1573961db183d22aa024/manage/dvr

Plex Media Server Logs_2019-08-09_14-54-08.zip (64.2 KB)

Edit: it looks like broken EPG setup error affects more users.