Can´t create more than one content type group
It seems this solves your issue : EntityMetadataWrapperException

You probably need to add field_og_subscribe_settings field to your new content group type, and make it required.

You can take a look at 

/admin/structure/types/manage/group/fields/field_og_subscribe_settings

to see how it's been configured for the default group content type.

Refer this link for detailed details about this issue: EntityMetadataWrapperException errors due to features not being reverted