Follow along with the video below to see how to install our site as a web app on your home screen.
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The APS Catalog has been deprecated and removed from all Plesk Obsidian versions. Applications already installed from the APS Catalog will continue working. However, Plesk will no longer provide support for APS applications.
Please be aware: with the Plesk Obsidian 18.0.78 release, the support for the ngx_pagespeed.so module will be deprecated and removed from the sw-nginx package.
I can confirm that removing the file /opt/psa/admin/plib/modules/dnssec/hooks/CustomButtons.php has solved the issue in Ubuntu 16.04.2 LTS - Plesk Onyx 17.0.17 Update #21
Regards
I know this is an old thread but maybe it can help someone with a similar configuration to the one mentioned here.
I've managed to solve this situation in Plesk 12 on CentOS 6 modifying the file "/var/named/chroot/etc/named.conf" and including inside the "options" section:
notify yes...