wait! please don’t abandon us yet! We love your product and want to continue using it!
Is this not related?
[20-Jul-2016 15:45:17 UTC] PHP Fatal error: Cannot redeclare class OAuthException in /home6/hemptsyc/public_html/wp-content/plugins/wc-vendors/classes/gateways/PayPal_Masspay/api/lib/auth/PPAuth.php on line 0