I have recently upgraded roundcube from 1.4.* to 1.5.0 with Apache 2.4.51 and php 8.0.12. When I click on the link "Always allow from user@domain.com" (preceded by "To protect your privacy remote resources have been blocked. Allow ") at the top of a message, I get a message with a red background "A contact with the same email address already exists".
This message seems to occur when "user@domain.com" is in my address book. It goes away when I delete it from my address book.
I have had to create a table called "collected_addresses" after I upgraded Roundcube. This didn't fix the problem.
Is there a solution to this?