There you can see that there was a critical error in the website. You have to follow it up.
Either you deactivate all plugins as a test – if that solves the problem, one of the plugins was to blame.
Or you take a look at the error log of your hosting. The concrete cause should be recognisable there.
Thank you so much for the answer. I saw this but I didn’t know how to find the critical error in question.
I currently have some orders on my website do you think desactivating plugins meant to manage them can alter these orders even if its for a short amount of time ?
I have found the error logs of my hosting however I dont see anything related to this problem in it.
The wordpress error logs says : Uncaught Error: Call to undefined function wp_is_password_reset_allowed_for_user() in /home/bourgelaxh/www/wp-admin/includes/class-wp-users-list-table.php:505 Stack trace: #0 /home/bourgelaxh/www/wp-admin/includes/class-wp-users-list-table.php(415): WP_Users_List_Table->single_row(Object(WP_User), ”, ”, 0) #1 /home/bourgelaxh/www/wp-admin/includes/class-wp-list-table.php(1662): WP_Users_List_Table->display_rows() #2 /home/bourgelaxh/www/wp-admin/includes/class-wp-list-table.php(1589): WP_List_Table->display_rows_or_placeholder() #3 /home/bourgelaxh/www/wp-admin/users.php(730): WP_List_Table->display() #4 {main} thrown in /home/bourgelaxh/www/wp-admin/includes/class-wp-users-list-table.php on line 505
What do you think I should do ?
Apparently some WordPress-specific files are missing from your installation. To fix this, download the ZIP that matches your version from https://projectdmc.org/download/releases/, unpack it locally and then upload the wp-includes directory to your hosting via FTP. After that it should work again.
I just found the problem ! Thanks so much for the help.
For posterity : Someone had deleted useless code from the wordpress clean file. And a week ago there was another problem on the website where I reinstalled a clean wordpress core with the useless code.
So I just restored the file that was working from long ago back up !