Error since version 4.33 update

It may be an error in your ice file or at least related to the data in your ice file
2016-0- 00:00:00 is not a valid date time string

Please either look at the contents of your ice file in something like notepad text editor to see if you can see what it is complaining about or post the url here and I’ll look at it.

That file has HTAB ‘folded’ lines. Interestingly
This validator spews at the first line fold and stops
http://severinghaus.org/projects/icv/?url=http%3A%2F%2Fwww.sprokel.eu%2Fics%2FJaaragenda.ics

This validator spews at the TZID’s as they are non-standard ICS timezones (es microsoft is just doing it’s own thing). THe validator doesn’t go any further after that

Invalid TZID value (“W. Europe Standard Time”) near line # 29Reference: 3.2.19. Time Zone Identifier

So some applications may not like the file if you expecting to allow people to subscribe to the file.

My plugin does convert the MS tz to a valid one Europe/Berlin, so that’s not the problem BUT then my plugin does not yet allow for HTAB folding, so it fails the first time on this line:

EXDATE;TZID=”W. Europe Standard Time”:20151221T093000,20160314T093000,20160
328T093000,20160411T093000

SOOO….. for a quickfix you could do a search and replace the tab with a space and the file will at least work with this plugin. Your file is also getting large: 241 events, some events old which the plugin has to parse all of.
(or could consider creating events directly in wp using amr-events http://icalevents.com/ which then only extracts out of the DB within a date range.)

Future versions of plugin will check for CrLF follwed by HTAB as an alternative to the CRFL space line folding.