Hi William,
Thanks for reaching out and thank you for using Crio Pro WordPress theme! I’m really sorry to hear you lost your work, I always suggest forming a habit of saving as you go just to prevent such matters.
Although Crio is just a theme, WordPress by default should come with some auto save features. One place you could check is the “Revisions” tab under the “Publish” section of your page editor.
If you have 1 or more revision click the browse button and try opening one of the previous ones and restoring it.
I hope this works for you! Let us know if you have any questions.