php - Wordpress dashboard : "Sorry you are not allowed to access this page" after moving live website to localhost

I tried to backup my Wordpress website manually.

1. I did a backup of my htdocs folder.
2. I exported a .sql file backup of my database which has "mas" as a prefix. (no underscore after)
3. I updated the old URL for the new URL in all my database (using PowerShell).
4. I updated the wp-config.php file.
5. I created a new database with the same name on my localhost server.
6. I imported the .sql file on PhpMyAdmin.

After that, I realized I could not access the dashboard as an administrator.

I had the following message : D?�sol?�, vous n??�avez pas l??�autorisation d??�acc?�der ?� cette page.

Which is the French equivalent of : Sorry, you are not allowed to access this page.

So I deactivated all my plugins. I changed my .htaccess file for .htaccess.old .

In my database, my table usermeta is configured like this for my user account. For some reason, I have two times "prefix_capabilites" and "prefix_user_level" :

update wp_usermeta
set meta_value = 'a:1:{s:13:"administrator";s:1:"1";}'
where user_id = YOUR USER ID
and meta_key = 'wp_capabilities';