Setting Auto BCC, input email address for BCC already, but the system keep asking me to 'Provide the email address for Auto Bcc'

Setting Auto BCC, input email address for BCC already, but the system keep asking me to 'Provide the email address for Auto Bcc'

I want to set Auto BCC in Zoho mail.

--> Settings --> Filters --> Outgoing Emails Filter

I input everything like before, then press 'Save': 

the system keep asking me to 'Provide the email address for Auto Bcc'

Anyone could help? thanks a lot