Solving File Folder Directories Suddenly Disappeared on Ubuntu

I’m using Ubuntu 23.04 Cinnamon the latest in 2023 and after moving files, suddenly the Nautilus explorer show error

Couldn't open file. No program to open the file

And suddenly the file, folder and all directories inside is gone.

If you have this problem, don’t panic. To solve this problem: Please reboot the ubuntu. Once you get login, you can go check on Trash and the file will be there!