Ahh, sorry yes, I had started your app without the login screen.
I've gone over your events, and your not settings any peer IDs for objects, which you should.
Take a look at the template examples, and make sure that in your app the host and newly connected peers get a PeerID.
For the host side:
On peer connected: create peerobject, set peerobject.peerID to multiplayer.PeerID
For the peer Side:
On peerobject created, set peerobject.PeerID to multiplayer.PeerID
Then, each player/peer or host has peerobjects with their own PeerID's, which you can use as reference, for Multiplayer.PeerAliasFromID(peerobject.peerid)