Same issue here, it happens when I simply try to delete an email message under channels email:
I raised the question here: Message frequency rule and email delete issue - Support - Mautic Community Forums
The error:Warning xxxx AH01071: Got error ‘PHP message: PHP Warning: mysqli_stmt::execute(): MySQL server has gone away in /var/www/vhosts/private.dom/mautic path/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/MysqliStatement.php on line 150PHP message: PHP Warning: mysqli_stmt::execute(): Error reading result set’s header in /var/www/vhosts/mautic path /vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/Mysqli/MysqliStatement.php on line 150’, referer: https://private.dom/s/emails
Has anyone found a fix? Right now we are only in testmode with some testaccounts with a fresh installation.
Tnx