@terryw45 Did you use Health Check as well as Custom Clean?
I ask because 4-days ago Laurence_CCleaner gave a more complete version of that answer to another user who had made a similar complaint:
PS. If you have a SSD in your computer, as most people do these days, then you should be aware that recovery of deleted files from an internal SSD is rarely possible. (It’s more possible with an external SSD).
Which makes it even more essential that you make regular backups of ‘important’ files at least.