I've just upgraded my system and applied workaround listed in https://kolab.org/hub/topic/111/smtp-error-554-5-7-1-data-data-command-rejected-sender-access-denied/11
After reboot active sync stopped working. Where I can find detailed error message?
UPD: found error message in /var/log/kolab-syncroton/errors:
PHP Fatal error: Call to undefined method kolab_auth::ldap_close() in /usr/share/kolab-syncroton/lib/kolab_sync.php on line 210
Does anyone know what it means?