AjaxURL has NOT

Hi there,
can you provide me the site Url where we can replicate the issue?
Thank you.

Of course.
my web site is https://www.kilitpazar.com/

Editting:
Please see the image. I’ve realized now. If I turn off this plugin the problem goes away.
Which ones should I remove the tick?

https://i.imgyukle.com/2020/08/13/urZASt.png

• This reply was modified 4 years, 7 months ago by loopforever.
• This reply was modified 4 years, 7 months ago by loopforever.

Hello again,
I just started using it here. Should I create a topic again ?

• This reply was modified 4 years, 7 months ago by loopforever.

Hi there,
please can you install following plugin and check if the problem persists with YITH WooCommerce Compare?
https://www.ads-software.com/plugins/enable-jquery-migrate-helper/

Thank you very much for your reply.
I installed the plugin. YITH WooCommerce Compare now works with WP Fastest Cache. However, it still gives the same error (“AjaxURL has NOT been defined.”). It does the comparison after clicking “OK”.