Critical error on the website

[Eldorean]

Username epiz_30773473

I am getting following message after debugging. Can you please help me find out what needs to be fixed and how?
Thanks in advance!

Error Message

Fatal error : Cannot redeclare use_block_editor_for_post() (previously declared in /home/vol11_1/epizy.com/epiz_30773473/htdocs/wp-includes/post.php:8093) in /home/vol11_1/epizy.com/epiz_30773473/htdocs/wp-admin/includes/post.php on line 2124

[KangJL]

Most likely can be fixed with this

How to fix a corrupted WordPress installation

WordPress frequently releases updates, which you can install through WordPress’ admin interface. Usually, this works without a hitch. But with some (big) upgrades, the upgrade fails half way and leaves you with a broken website. Fortunately, you can still fix your website without any data loss, and this article tells you how to do that. Download a fresh copy of WordPress First of all, you will need to download a fresh copy of WordPress. You can download this from the official WordPress website…

Take note of this as well

How to install, setup and update WordPress correctly

Do you often see this on your WordPress website? [image] If so you may need to change some of the installation settings. Installing WordPress For Fresh Installation Make sure you are using the following settings when using Softaculous Install [image] Existing Installation You can access your existing installation via [image] Followed by [image] Make sure these are the settings used [image] On the WordPress config To play safe, add this line to the wp-config.php [image] …

[Eldorean]

Solved, thank you!