I don't need a fix on my site, just pointing this out as I think it's a general issue:
If you have a closed group submitted for moderation, in the back-end GROUPS > PENDING MODERATION the type shows up as COM_EASYSOCIAL_GROUPS_CLOSED_GROUP
If you have a closed group submitted for moderation, in the back-end GROUPS > PENDING MODERATION the type shows up as COM_EASYSOCIAL_GROUPS_CLOSED_GROUP