Can't edit content of "Column text" element

“Column text” element : the “edit content” button open a popup wich never stops to load and never show content.
Watching the console, doing this creates a “forbiden” message : error 403.
Capture : https://ibb.co/KGCc2M5
How to fix this ?

• This topic was modified 2 years by Vairao.

What is Cloudflare exactly ? This looks to be outside from my wordpress website.

Here is a capture of the error details : https://ibb.co/vzzgKRr

I edited the htaccess this way but doesn’t help :
# SGS XMLRPC Disable Service
<Files xmlrpc.php>
# order deny,allow
# deny from all
</Files>
# SGS XMLRPC Disable Service END

# BEGIN WordPress
# Les directives (lignes) entre « BEGIN WordPress » et « END WordPress » sont générées
# dynamiquement, et doivent être modifiées uniquement via les filtres WordPress.
# Toute modification des directives situées entre ces marqueurs sera surchargée.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* – [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

# SGO Unset Vary
Header unset Vary
# SGO Unset Vary END

I can’t find any “preview” button in the console. Wich browser are you using ?

Sorry, i can’t find any Preview tab in Network tab : https://ibb.co/LNFPD0B

May i ask you to have a look directly on the page editor from my admin WP dashboard ?
WHich email can i send you credentials safely ?

Cheers

There are 2 errors :
https://ibb.co/QHJJNc4
https://ibb.co/CnWqFms

thanks you very much, i could fix this with the host support it came from a security plugin