Hi @2percentsingles,
As mentioned in the topic linked in your reply, this plugin is untested with the theme so we cannot guarantee that everything will work as expected. However, we believe that there shouldn’t be any issue with it as this plugin should not affect the layout or design of our theme.
Your issue seems to be related with your SMTP settings and as theme authors, solving server misconfiguration issues is outside the scope of the support that we can provide for our product.
Please make sure that your server configuration is meeting the WordPress prerequisites. For more please review the following post: https://wordpress.org/about/requirements/
For better performance and improved security, we obviously recommend the version 7.2 for PHP. Nevertheless, if this is not possible for you for various reasons, we recommend at least version 5.6.X.
To go further, we invite you to ask for more help from your server hosting support or the plugin authors.
We believe that they’ll be better informed and more able to help you.
Regards,