TypeError: e is undefined

Hi @santoso1990,

Hard to say what’s going on with so little details so you’ll have to do some debugging. Try disabling all of your plugins except for WPP and try again. Does the issue still persist?

thank you for response.

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

Ok, one more question: does the error goes away if you disable WPP? If so, I’ll need some more information from you in order to try and reproduce the problem:

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

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?

I installed a fresh version of WordPress and set the language to Japanese and everything worked normally for me:

1. Added widget to the sidebar:

2. Changed some settings then clicked on the Save button:

No console errors either.

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.

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.