Curl error 60

Hello all !

After installing the plugin, i have the following notice when debug mode is active :

Notice: Trying to access array offset on value of type null in …/wp-content/plugins/wp-reviews-plugin-for-google/trustindex-plugin.class.php on line 5641

It seems i can’t load the predefined styles from this url https://cdn.trustindex.io/widget-assets/template/$lang.json because of a curl error.

If i continue to link my Google Business Profile, it returns “CSS file could not save”

• WP, plugins and curl are up to date.
• No caching plugin.
• .htaccess replaced with the default value
  
  Any idea ?
  Thanks !