Invalid query:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Groups g, GroupMembers gm where gm.LoginId = 1 and g.GroupId = gm.Grou' at line 2

Whole query:
select g.* from Groups g, GroupMembers gm where gm.LoginId = 1 and g.GroupId = gm.GroupId and g.ArchiveDateTime is null order by Rand() limit 0,3