I got this

Warning: Unknown column 's.domain' in 'where clause' query: SELECT u.*, s.* FROM groupusers u INNER JOIN groupsessions s ON u.uid = s.uid WHERE s.sid = 'r8hm2di8erq16hf45b8ujs51v3' AND s.domain = 'XYZ.com' in /var/htdocs/www2.XYZ.com/htdocs/includes/database.mysqli.inc on line 128

Notice: Undefined index: singlesignon_message in /var/htdocs/www2.XYZ.com/htdocs/sites/www.XYZ.com.groups/modules/sso/client/singlesignon_client.module on line 40

And it was not possible to patch the inc file....