Cannot save emails on version 4.4

My Mautic version is: v4.4.8
My PHP version is: 8.0

Hello, when I go to emails, I create one, but is not being saved, but consol error doesn’t show any error, but if I do clic con apply and save, I got error 403 on:

https://mydomain/s/emails/edit/4
index.js:1 “beautify” option is deprecated in mjml-core and only available in mjml cli.
e.default @ index.js:1
ckeditor.js?v7dc21425:21 [CKEDITOR] Error code: exportpdf-no-token-url.
(anonymous) @ ckeditor.js?v7dc21425:21
ckeditor.js?v7dc21425:21 [CKEDITOR] For more information about this error go to Error Code Reference - CKEditor 4 Documentation
(anonymous) @ ckeditor.js?v7dc21425:21
index.js:1 “beautify” option is deprecated in mjml-core and only available in mjml cli.
e.default @ index.js:1
4?mauticUserLastActive=8&mauticLastNotificationId=:1 Failed to load resource: the server responded with a status of 403 ()
DevTools failed to load source map: Could not load content for chrome-extension://gighmmpiobklfepjocnamgkkbiglidom/browser-polyfill.js.map: System error: net::ERR_FILE_NOT_FOUND

Any one know how to solve this?

I ALREADY:

Disable ModSecurity from cPanel
Disable CSF Firewall
Pause CloudFlare rules
Reset folders and files permissions
Clear all caches