Automatic Synchronisation

Hello together,

i use JEvents v.6.46.
In the settings anonymes actualisation is allowed.
The link to the *.ics is set.

But the calendar will not be updated.
I use cron-job.org too.

Manuel actualisation at backend works.

I tried "http://www.mydomain.com/index.php?option=com_jevents&icsid=3&task=icals.reload"; too.

I replaced "mydomain.com" with my adress and replaced "3" with my *.ics number.

But nothing works.

Thanks.