santoso1990

So, in my opinion, your problem is being caused either by:

Another plugin.
Your theme.
A corrupted WordPress setup.
A combination of any of the above.

thank you for response,

I will try to look at these four problems.
thank you.

WordPress version?
WordPress 5.3.2
Site language? (Seems like it’s Japanese but I need confirmation from you)
Japanese
Plugin version?
WordPress Popular Posts 5.0.2

for check directly, do you need information into account admin?

thank you for response.

Try disabling all of your plugins except for WPP and try again.
yes, but still same problem.