Negative impact on theme since 2-3 weeks

@pover We’re sorry to hear you are experiencing an issue when using the plugin with your theme.

?Can you please confirm you are using the most recent version of Yoast SEO, version 15.4? You can learn more about updating here: https://kb.yoast.com/kb/how-can-i-update-my-free-plugin/

Also, can you confirm you are using WordPress 5.5.3? You can check by clicking on the W in the top left and selecting About. If you need to update, please check with your host provider. Please know that if you are using an older version of WordPress Core you may experience unexpected behavior with Yoast. This guide explains more: https://yoast.com/why-we-dont-support-old-wordpress-versions/

If you update to the most current version of WordPress and Yoast SEO, does this resolve the issue?

Just to be sure, we would like to rule out any plugin or theme conflicts that may occur. The fastest way to do this is to?deactivate all non-Yoast plugins and switch to a standard theme?like?Twenty Nineteen.?Test this on your development or staging site, if you have one. If not, we recommend using the?Health Check & Troubleshooting?plugin. This plugin allows you to run a conflict check?without affecting normal visitors to your site.

If you’re unfamiliar with checking for conflicts, we’d like to point you to a step-by-step guide that will walk you through the process:?How to check for plugin conflicts.

Hi,
thank you for replay.

I double check version of WordPress and Yoast plugins:

Yoast SEO Version: 15.4
Yoast SEO Multilingual Version: 1.2.4
Wordpress Version: 5.5.3

As you can see there is nothink to update ??

I can also confirm that is becouse of Yoast SEO plugin, becouse i turneed off all not nesessery plugins and turning one by one. The problem started when i turned on Yoast ??

I can alse attach the screenshot or give you crdentials but didnt see the option here.

Thanks for your confirmation. You can add a screenshot by following the steps given here: How to include screenshots or videos?.

That said, we looked at the relevant page https://kaybi.eu/boutique/?lang=en on your site that you have shared with us and were able to reproduce the issue. We see the Quick View option isn’t working and showing the following error in the browser console:

GET https://kaybi.eu/wp-admin/admin-ajax.php?action=porto_product_quickview&variation_flag=true&pid=4782&nonce=0747e224c2 500
(anonymous) @ VM6:1
send @ jquery.js?ver=1.12.4-wp:4
ajax @ jquery.js?ver=1.12.4-wp:4
_loadAjax @ jquery.fancybox.min.js:1
_start @ jquery.fancybox.min.js:1
open @ jquery.fancybox.min.js:1
i.fancybox @ jquery.fancybox.min.js:1
init_quick_view_window @ woocommerce-theme.js?ver=5.5.1:1822
(anonymous) @ woocommerce-theme.js?ver=5.5.1:1832
dispatch @ jquery.js?ver=1.12.4-wp:3
r.handle @ jquery.js?ver=1.12.4-wp:3
load (async)
add @ jquery.js?ver=1.12.4-wp:3
a.event.add @ jquery-migrate.min.js?ver=1.4.1:2
(anonymous) @ jquery.js?ver=1.12.4-wp:3
each @ jquery.js?ver=1.12.4-wp:2
each @ jquery.js?ver=1.12.4-wp:2
ra @ jquery.js?ver=1.12.4-wp:3
on @ jquery.js?ver=1.12.4-wp:3
(anonymous) @ woocommerce-theme.js?ver=5.5.1:1831
dispatch @ jquery.js?ver=1.12.4-wp:3
r.handle @ jquery.js?ver=1.12.4-wp:3

We are afraid to say that we were unable to test this on a fresh WordPress installation on our end as the relevant theme (Porto) is a premium theme that is only available on ThemeForest and we don’t have access to it.

In this case, we recommend you please switch to the default 2020 theme while using the Health Check plugin (following the above steps) to see whether it’s an issue between the Porto theme and Yoast SEO plugin.

We are going ahead and marking this issue as resolved due to inactivity. If you require any further assistance please create a new issue.