1. Log into Plesk.

  2. Go to Plesk > Tools & Settings > IP Addresses and press Reread IP:

  3. Select the appeared IP addresses and click on the Repair button to fix them

    OR

    click the Remove button if they are no longer required.

  4. Connect to the server via SSH.

  5. Disable and Enable nginx service:

    /usr/local/psa/admin/bin/nginxmng -d

    # /usr/local/psa/admin/bin/nginxmng -e