I changed some configurations and the recycle bin icon is working
Previous environment :
two fences with 3 icons (total 6 icons)
recycle bin icon is the outside of fences
Therefore, there are 7 icons in my desktop
Changed environment :
two fences with 4 icons (total 8 icons)
recycle bin icon is the inside of fences
As a result, there are 8 icons in my desktop
In the changed environment, I used my PC during two weeks. The problem does not occur.
If someone has this problem, this might be one solution.