MacConfucious say:
"User that hides folder may discover folder likes being hid!"
Here's how to unhide and move that folder as you desire:
1. Download Pathfinder from here:
https://cocoatech.com/#/
2. Launch Pathfinder, click "buy later" (it should work for now, long enough to do what you need to do)
3. Look at the "View" menu for an option "Show invisible files". Choose that if it's not already chosen.
4. ALL normally-invisible files and folders should now be visible. Can you see the folder you're looking for? Pathfinder also has a search feature (up top). Try it if necessary.
5. When you find the folder, click on it one time to select it.
6. Now, go to the file menu and look for "Attributes". There should be a toggle choice there for "invisible". Try it.
7. Does the folder now become visible? To be sure, go back to Step 3 above and choose to NOT show Invisible Files
8. If this works, you should now be able to quit Pathfinder and manipulate the folder "normally" using the finder.