On 2017-01-20 14:03, Nadine Utz wrote:
The calendar is listed at "Installed
extensions", but the page with the
calendar is empty and the error message is: "Failed to load resource:
the server responded with a status of 500 (internal server error)".
A blank page or HTTP 500 error usually indicates a fatal PHP error. For
information on debugging (including viewing errors), see
<https://www.mediawiki.org/wiki/Manual:How_to_debug>.
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Bartosz Dziewoński