WP Admin taking too long to access

@zohaibkhan5 We’re sorry to hear you are experiencing this issue on your site.

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.As we can imagine that 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.`

My host support team has already found this conflict and also got an email from WordPress: “WordPress caught an error with one of your plugins, Yoast SEO”
I am unable to install Health Check & Troubleshooting plugin WP says unable to create directory error

• This reply was modified 4 years ago by zohaibkhan5.

We are sorry to hear that you were unable to install the Health Check plugin as WordPress couldn’t create a directory for it. In this case, we recommend you please share the exact error here with us that your web hosting provider found out already for you so that we can understand the issue better.

We look forward to hearing from you.

When enabling the plugin, yoast, a site failure occurred. Because of this the change was automatically reverted.
site health plugin report

Hi,

We understand that is the error you received when attempting to enable Yoast SEO for WordPress under troubleshooting mode.

Could you share with us the specific error message you received from the email you received from WordPress so we can possibly identify what is causing the issue?

Please do make sure your site is meeting the necessary plugin requirements — https://yoast.com/help/plugin-requirements/

Would it be possible for you to perform a conflict check on a staging site or manually performing it, if possible? You can learn more about it here — https://kb.yoast.com/kb/how-to-check-for-plugin-conflicts/

Error Details
=============
An error of type E_ERROR was caused in line 266 of the file /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-content/plugins/wordpress-seo/inc/sitemaps/class-post-type-sitemap-provider.php. Error message: Uncaught Error: Class ‘WPSEO_Post_Type’ not found in /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-content/plugins/wordpress-seo/inc/sitemaps/class-post-type-sitemap-provider.php:266
Stack trace:
#0 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-content/plugins/wordpress-seo/inc/sitemaps/class-post-type-sitemap-provider.php(253): WPSEO_Post_Type_Sitemap_Provider->is_valid_post_type(‘post’)
#1 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-includes/class-wp-hook.php(289): WPSEO_Post_Type_Sitemap_Provider->save_post(5925)
#2 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#3 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-includes/plugin.php(484): WP_Hook->do_action(Array)
#4 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-includes/post.php(4309): do_action(‘save_post’, 5925, Object(WP_Post), false)
#5 /home/552782.cloudwaysapps.com/admrswwmpf/public_html/wp-admin/includes/post.php(690)

@zohaibkhan5 Thanks for your reply and for providing the error.

Looking at the error details, we observe that a class that is no longer available in the plugin, although ‘WPSEO_Post_Type’ is still being referenced. This usually happens when the plugin files are cached and some old files are still used after updating the plugin. On occasions, this causes temporary errors that resolve themselves once the cache has been cleared.

If the problem doesn’t resolve for you automatically, can you please try clearing the cache from your theme, plugin, server and CDN (e.g. CloudFlare) before and after updating Yoast SEO? If you are not sure how to clear the cache from a theme or plugin please speak to those authors. If you want to clear cache from the server, please speak to your host provider.

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