Was updating plugin and now my site is down

I was updating plugin w3-total-cache and it was taking too long, to the point where I felt a problem occurred. I tried to open up my website but it was down. I think my connection went down during the updating process at some point. But now my site just comes up blank https://automata-theatre.netau.net/ and my wordpress login page https://automata-theatre.netau.net/wp-login.php?loggedout=true.

What could be the problem so I can fix it? Any help is appreciated.

Thanks