Exceeding of daily quota means that you've reached the limit of the number of emails that can be sent from your account within a day.
To resolve this error, you can try the following options:
Reduce the number of emails you are sending each day.
It's recommended to send 30 campaign emails + 10 warmup emails per day per account.
Upgrade your email plan to increase your daily sending quota.
You can contact your email provider to see if this is an option.
Wait for 24 hours before sending any more emails.
The sending limit resets every 24 hours. This will give your account time to reset its daily sending limit.
Use an alternative email provider.
Use an email provider that offers a higher daily sending quota.