Hi,
Thanks for using the Coupon Creator Pro & Add-ons.
Here on the ww.wp.xz.cn forum, I’m afraid we do not provide technical support for our premium plugins. I would ask that you take any technical support questions across to our premium forum where we will respond to you within 24 hours during the week:
https://couponcreatorplugin.com/support/contact/
Having said that I can get you started. I was able to reproduce the issue on mobile there is a 404 error in the console for this file:
/wp-includes/js/jquery/jquery.form.min.js.map
I had a similar issue on another site and removing the reference to the .map file fixed the issue for me.
In your case the reference is in this file:
/wp-includes/js/jquery/jquery.form.min.js at the bottom of the file:
//# sourceMappingURL=jquery.form.min.js.map
Removing that should fix it. It fixed the issue in my case.
I am not sure why on mobile that should break things, that is not suppose to happen with a 404 error, but I guess it does.
Also, that is a WordPress file so updating WordPress would overwrite the fix.
In the past it looks like the map reference line has been removed:
https://core.trac.ww.wp.xz.cn/ticket/24994
So maybe a new ticket needs to be created to address it?
If you would like further help please contact us on our premium support system.
Thanks again!