brionace

In Postman under Authorization try deselecting “Add params to header“.

• This reply was modified 8 years, 1 month ago by brionace.

If it doesnt work after all the suggestions try adding this to your functions.php

add_filter('https_ssl_verify', '__return_false');
add_filter('https_local_ssl_verify', '__return_false');

Thanks to: https://stackoverflow.com/questions/29080397/wordpress-cron-error-ssl-certificate-unable-to-get-local-issuer-certificate

It worked for me.