OneSignal team has identified the issue and they have confirmed that a fix has been rolled out
Posted Mar 18, 2021 - 18:38 UTC
Update
We are contacting OneSignal team for a response. Please note only mobile app notifications are affected now for text messages and missed calls.
Posted Mar 18, 2021 - 18:06 UTC
Identified
OneSignal Team - We are experiencing an internal DNS outage and working to resolve it.
Posted Mar 18, 2021 - 17:58 UTC
Investigating
We're experiencing an elevated level of API errors and are currently looking into the issue. This is from our service provier that we use for sending notifications for SMS on desktop, mobile apps and web apps