You are receiving Error 30022 because you have reached the maximum rate limit of your carrier for a phone number or campaign.
It happens when you are sending 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 reached the maximum carrier's limit for the day of sending messages, you will receive the error 30023.
Read about message limits in this article.