@Molly2000
Thank you for posting on HP Support Community.
Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:
A system recovery completely erases any local files or settings and returns the computer to its original factory shipped state.
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If a hard reset does not resolve your issue OR your Chromebook shows the error message Chrome OS is missing or damaged, you might need to perform a system recovery. For detailed instructions go to Chromebook Help Center and search for Recover your Chromebook.

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If a system recovery still does not resolve the issue, contact HP support. To check the warranty of your laptop, go to HP Customer Support - Product Warranty Check.
Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
ECHO_LAKE
I am an HP Employee