Hello I have had to use the Version 1.2.28
Why? Because the latest version still has the PHP error and the website stops sending emails completely when I update. Whereas 1.2.28 seems to have worked until now.
I have 2 websites:
First website will now not Sync my contacts now when I hit apply and nothing happens.
The other website I get the following message when I log in and I tried deactivating plugins still happens: “You cannot to use Sendinblue SMTP now because wp_mail has been declared by another process or plugin.”
However, nothing on either of these plugins has changed recently. Maybe only WordPress Version.