Cannot Delete Files

I suggest you use the program created by Etresoft, a frequent contributor.  It will provide a snapshot of your system which we can analyze to possibly determine the cause of your problem. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

https://itunes.apple.com/us/app/etrecheck/id1423715984?mt=12

Use the Add Text button to include the Etrecheck report in your reply.

Uninstall Sophos. It is worthless junk on a Mac.

Try doing a reboot and see if they will delete then.

If not, try doing a safe reboot to see if that releases the files for deletion.

Uninstall CleanMyMac and Bitdefender. They are worthless pieces of junk on your Mac. After uninstalled them using the procedures provided by the developer.

Those items are all folders and subfolders in the private/var/..... folder location. I check all of my similarly names folders and they were all empty. But this shows how dangerous Sophos and other similar anti-virus apps are.