TommyRocks

Hey Jos,

We had the same issue. There is an easy hotfix. go to file wp-content/plugins/wp-whatsapp-chat/vendor_packages/wp-notice-plugin-promote.php line 76.

There you see this line:
Today we have a special gift for you. Use the coupon code %1$s within the next 48 hours to receive a 20% discount on the premium version of the %2$s plugin.

Change it to this:
Today we have a special gift for you. Use the coupon code %1$s within the next 48 hours to receive a 20\% discount on the premium version of the %2$s plugin.

So add a \ after 20 to escape the %.

Hope this helps you to.

Regards,
Omri de Hek

We have tested this matter further and we can conform that this issue is resolved when using the latest version of WordPress (5.7.2) and Contactform 7 (5.4.1).

For use the issue happened because we are using the Bootstrap for Contactform 7 plugin. If you are using this as well look at the pull requests on GitHub (https://github.com/felixarntz/bootstrap-for-contact-form-7/pull/62). The solution is there but the maintainer of the plugin is inactive so you have to patch manually.

Reading the comments this issue does not look resolved. As I’m running into this issue aswell and I’m confused to find this marked as resolved.

The only resolution I see here is to downgrade WordPress. Which is only a temporary fix.

@contactform7
Are you guys still working on this?