HAProxy API reconfigure failed

[MiRei]

I have a problem with the API of the Haproxy.
The modification of conditions and e.g. the status query via

curl -k -u $OPNS_KEY:$OPNS_SECRET https://$IPFW/api/haproxy/service/configtest

work without any problems.

But when I want to to apply my modifactions via:

curl -k -u $OPNS_KEY:$OPNS_SECRET https://$IPFW/api/haproxy/service/reconfigure

I get an error message:

{"status": "failed"}

Does anyone have a tip?

Thanks a lot