Do the following:
Code:
as root:
mkdir /opt/zimbra/zimlets-properties
chmod 750 /opt/zimbra/zimlets-properties
chown zimbra:zimbra /opt/zimbra/zimlets-properties
su - zimbra
zmzimletctl deploy zimlets/com_zimbra_cert_manager.zip
zmzimletctl deploy com_zimbra_backuprestore.zip
zmmailboxdctl restart