Admins can't access block manager?

[Colombia Humana]

Hello there,

I used the tool Staff > Administrators to add a new community admin. He has unrestricted access; however, he cannot start the Block manager in the frontpage, the "You do not have permission to view this page" error appears when he tries.

I can't locate such permission in the admin area. Any advise?
Regards

[Nathan Explosion]

It's a moderator permission:

So add him as a moderator too.