Something weird is happening with WordPress on my website. Hacking attack?

Admin, I’m sorry to bore you again, but since the recent changes, I’ve been facing an issue with the plugins appearing on the main website:

Deprecated: Creation of dynamic property ‘metricool::$plugin’ is deprecated in /home/vol5_6/epizy.com/epiz_30921126/htdocs/wp-content/plugins/metricool/metricool.php on line 34.

Deprecated: Creation of dynamic property ‘WPtouchProFour::$settings_object’ is deprecated in /home/vol5_6/epizy.com/epiz_30921126/htdocs/wp-content/plugins/wptouch/core/class-wptouch-pro.php on line 82.

All the plugins and WordPress are updated to the latest version. When I check the plugin files, they don’t contain the specific deprecated dynamic property creation.

WEBSITE: https://helmort.com/

USER : epiz_30921126