[primaeval]

great job it works now. Thank you! I can now schedule. In the contextEPG.py file I use: language = "de_ch.ISO8859-15". In Kodi I use regional settings German / CH.

In the ITPV Simple client I get the error Timer: The PVR backend does not support timers . How to solve this?

Good.
I'm not sure how to do a generic fix right now. When I do an update the language= fix will break.
If anyone else does please let me know.

You can't use the Kodi PVR menus for Recording. They are linked to the IPTV Simple Client internally.

You can do a timed recording from
Kodi \ TV \ Channels \ context menu \ IPTV Recorder Timer
or from
IPTV Recorder \ Channel Groups \ All Channels \ context menu \ Add One|Daily|Weekly Time Rule