d'nt worked caldav!

<d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
<s:sabredav-version>2.1.11</s:sabredav-version>
<s:exception>Sabre\DAV\Exception\NotImplemented</s:exception>
<s:message>There was no handler found for this "GET" method</s:message>
</d:error>