You are receiving Error 30022 because you have reached your carrier's maximum rate for a phone number or campaign.
It happens when you send messages at a higher rate to a particular carrier and has exceeded the maximum limit for the phone number and/or campaign.
Read more in this article, Error 30022.
Once you reach the maximum carrier's limit for the day of sending messages, you will receive the error 30023.
Read about message limits in this article.