We see the mailing the number 413346 and 413329. For both, UniSender returned the status of "Unable to create a campaign. "Reason: For your account, the email distribution function is temporarily suspended due to questions about the quality of the list. If you were unable to find the message, please contact the technical support"
Did you answer UniSender on how these contacts got into your Bitrix24?
Yes, we see a critical error in your portal. Please check if SSL is on the domain. If it does not work out, we will need to access your box to check whether your box is secure on SSL.