HI, look, it does not matter, i changed it for a simple mailchimp custom form, i was dealing with the same problem before some time and i really dont have time for this,

i understand that joomla is minor system on the market, so development for this horrible platform is not getting enough attention :(

Hello

This can actually be a DNS configuration problem on the dedicated server. Could you please check that your hosting service permits outgoing curl connections and your curl is enabled?