Error operation can't be completed because the item can't be found

Hi ScrapnJods,

It's possible you may need to change or check your current permissions. Start with the steps below found in the article here: If you can’t move or copy an item on Mac

"If you can’t move or copy a file or folder, you might need to change its permissions settings. You might also need to change permissions settings for the disk, server, or folder where you want to move the item.

1. On your Mac, select the item, then choose File > Get Info, or press Command-I.
2. Click the arrow  next to Sharing & Permissions to expand the section.
3. Click the pop-up menu next to your user name to see the permissions settings.
4. If you’re not logged in as an administrator, you may need to click the lock  to unlock it, then enter an administrator name and password (or use Touch ID or your Apple Watch).
5. Change the permissions to either Read & Write or “Read only.” 
6. If you need to, also change the permissions for the location where you want to put the item."

You can also find helpful information here: Change permissions for files, folders, or disks on Mac as well as here: If you need permission to open an item on Mac

If the issue remains, you can also test while booted to safe mode. If needed find those steps here: How to use safe mode on your Mac

Cheers.