Getting an Error when trying to go to Zoho Campaigns

Getting an Error when trying to go to Zoho Campaigns

When trying to go to Regular campaigns I am getting the following Error:
An internal error occurred while adding your email address.
In looking through some forums we did find the following:
https://help.zoho.com/portal/en/community/topic/error-an-internal-error-occurred-while-adding-your-email-address
This of course just states to notify Zoho Support.