Send that to your hosting provider. It is showing that you aren't updated to the latest TLS version for your site.
This part:
"tls_version":"TLS 1.0","rating":"Bad"
Has to say:
"tls_version":"TLS 1.2","rating":"Good"
This is something your hosting provider will have to fix. Show them that page. CURL has to use TLS 1.2 for paypal to accept the communication.