11-15-2019 07:23 AM
Welcome to Lenovo Community Forums.
When did the issue start? It seems like the machine is not booting up to Chrome OS, we suggest that you perform a factory reset and erase all the information on your Chromebook's hard drive, including all the files in the Downloads folder.
Before you reset, make sure to back up your files on Google Drive or an external hard drive. The factory reset won't delete any of your files on Google Drive or external storage device.
Factory reset your Chromebook:
Reference link: https://support.google.com/chromebook/answer/183084?hl=en
Let us know how it goes.