Plesk interface shows: cURL error (77): Error in cURL request: Problem with the SSL CA cert (path? access rights?

1. Connect to the server via SSH

2. Download the CA certificate store from the official cURL website and move it to the directory /etc/ssl/certs/:

   # wget https://curl.haxx.se/ca/cacert.pem && mv cacert.pem /etc/ssl/certs/

3. Add the following line into the end of the file /usr/local/psa/admin/conf/php.ini:

   CONFIG_TEXT: curl.cainfo="/etc/ssl/certs/cacert.pem"

4. Restart the Plesk engine service via the following command:

   # systemctl restart sw-engine

   Once this is done, you should be able to see the What's New box without issues

Additional information

Website on Plesk shows: cURL error (77): Problem with the SSL CA cert