Message forwarding was paused because your endpoint kept failing.
After 5 deliveries in a row ran out of retries (about 21 hours each), Avox paused forwarding for this connection and emailed your Admins. Your messages are still in your Inbox.
Fix your endpoint, then click Send test event until it shows Delivered.
Turn message forwarding back on.
Resend any messages you missed from the delivery log.
Still stuck? Send AVX-3104 to hello@theavoxai.com along with what you were doing when it happened.