Sending has been paused due to a MailPoet technical problem

Help me solve my problem.

The MailPoet sending service has stopped sending your emails for any of the following reasons:

You have exceeded the subscriber limit of your plan. I have a base of 154 emails.

You have a bad delivery rate. It’s what I’m doing

Check your shipping method settings.The settings are correct.

The page I need help with: [log in to see the link]