Board Thread:Support Requests - Getting Started/@comment-28529356-20160614043403/@comment--20160614051145

You can publicly view deletions through the deletion logs on every community. By going to the deletion log on the community where your page existed, you should be able to find who deleted the page.

You can protect an article to limit certain groups from editing it. However, you need admin rights (or content moderator rights) at the very least to protect a page. You could try asking a local admin to protect a page for you, however if you aren't an admin and request it to be "admin edit only" then you can't edit it either unless you have admin rights.