Our form submissions are not being sent to our emails again

Your email address is in the bounce list. It is the reason why you are not getting notifications.

I have remove it from the list now. You should be able to receive the new notifications now.

Please contact your email provider and ask them to whitelist our mail servers and IP addresses. Here's a guide: Whitelisting-JotMails-IP-Addresses

Please check these guides as well:
How-to-Setup-Email-Alerts-to-Prevent-Email-Bouncing-Related-Issues
How-to-Remove-Your-Email-Address-from-Bounce-List

Hope that helps. Thank you.