There appears to be some sort of general outage with PayPal right now, possibly related to the "Emergency Maintenance" window they announced for 10pm to 3am MST (GMT -7) tonight. Since right now it's a bit early for that, and just in case there's anything we can do, I've also reported the current outage to Development for a closer look.
06/06/17 10:00 PM to 06/07/17 03:00 AM
Live Site Emergency Maintenance
Notification: The PayPal live site will undergo scheduled maintenance on June 6, 2017.
Sent Jun 6, 2017 10:31 AM MST by STC
Key Times to Note:
Emergency Maintenance Start time: Jun 6, 2017 10:00 PM MST
Emergency Maintenance End time: Jun 7, 2017 03:00 AM MST
During the time window indicated, merchants and consumers may experience intermittent performance issues and timeouts.
Questions? Please contact PayPal Merchant Technical Services by filing a ticket; refer to PP-LIVE-7914