[kronolith] Thunderbird Lightning does not display Kronolith Calendar

[Ferdinand Gruber]

I am using Thunderbird 38.2.0with  Lightning 4.0.2 as frontend.

May be after updating horde groupware, anyway, now Lightning does not 
display any calendar events.

In the Thunderbird error console I can see 2 messages:

    CalDAV: Fatal Error parsing etags for MyHordeCalendar
    NS_ERROR_UNEXPECTED: Component returned failure code: 0x8000ffff 
(NS_ERROR_UNEXPECTED) [nsISAXXMLReader.onDataAvailable]

Any idea?

-- 
Greetings from Austria
Ferdinand Gruber