Blog Post Disappeared

Last night I wrote and posed a new blog. I then shared the link on our Facebook Page.
Everything was working fine.
I went in this afternoon to write and post another blog and noticed that the blog from the previous day had disappeared. The link from Facebook no longer works (404 error) and the blog doesn’t show up on our website (which is directly linked to WordPress) and it is not in the WordPress Dashboard anywhere.

I know that I did not delete this post but I have no idea where it is or why it is no longer available.

Please help.