WPMUDEV & M2P

Hi guys

we have had a prolonged period of inactivity on our site whilst we re designed it. it now looks fantastic.

We have a couple of issues though can you help urgently?

1) the WPMUDEV dashboard has disappeared. How can we re instate?
2) the autio updates have stopped. WPMUDEV and M2P as well as others have not been updated and will not allow me to update. when i click more infos it says i do not have sufficient permissions to access the page?

can you assist?