donevski1

and how can I upload my PHP on my website ???

This is the plugin
Social Share WordPress Plugin – AccessPress Social Share

I deactivate some of the plugins and this show up on Health check
The loopback request to your site completed successfully.

Background updates (1 and 2 are good but on 3rd one i have x )
1.No version control systems were detected.
2.Your installation of WordPress doesn’t require FTP credentials to perform updates.
3.Some files are not writable by WordPress:
wp-settings.php
wp-cron.php
wp-comments-post.php
wp-activate.php
wp-admin/link-parse-opml.php
wp-admin/js/editor.js
wp-admin/js/user-profile.min.js
wp-admin/js/word-count.min.js
wp-admin/js/tags-suggest.js
wp-admin/js/tags-box.js
wp-admin/js/theme-plugin-editor.js
wp-admin/js/image-edit.js
wp-admin/js/updates.min.js
wp-admin/js/postbox.min.js
wp-admin/js/nav-menu.min.js
wp-admin/js/theme.min.js
wp-admin/js/custom-header.js
wp-admin/js/media-upload.js
wp-admin/js/color-picker.js
wp-admin/js/iris.min.js

I don`t know if you need all of this but maybe it will be of some help
Some files are not writable by WordPress:
wp-settings.php
wp-cron.php
wp-comments-post.php
wp-activate.php
wp-admin/link-parse-opml.php
wp-admin/js/editor.js
wp-admin/js/user-profile.min.js
wp-admin/js/word-count.min.js
wp-admin/js/tags-suggest.js
wp-admin/js/tags-box.js
wp-admin/js/theme-plugin-editor.js
wp-admin/js/image-edit.js
wp-admin/js/updates.min.js
wp-admin/js/postbox.min.js
wp-admin/js/nav-menu.min.js
wp-admin/js/theme.min.js
wp-admin/js/custom-header.js
wp-admin/js/media-upload.js
wp-admin/js/color-picker.js
wp-admin/js/iris.min.js

I just Run the test and here are the results
Loopback request
– The loopback request to your site took too long to complete, this may prevent WP_Cron from working, along with theme and plugin editors.

Result from testing without any plugins active: The loopback request to your site completed successfully.