Elementor 404 error

Where can we see the website in question?

Hi, https://traumastressrelease.com/dev/blog/ in the green

Also have this error above the wp-admin

Deprecated: The PSR-0 Requests_... class names in the Request library are deprecated. Switch to the PSR-4 WpOrg\Requests\... class names at your earliest convenience. in?/var/www/vhosts/traumastressrelease.com/httpdocs/wp-includes/Requests/src/Autoload.php?on line?171

but if I change the php version to the latest i only get more errors

What other plugins and theme do you use on the site?

Well, I think its all connected. The problem lies in that I cannot update plugins as I get the chmod error that file permissions are incorrect. However, I set the permissions like here https://www.malcare.com/blog/wordpress-file-permissions/. So I don’t think the permissions are a issue really..

I’ve moved website to https://traumastressrelease.com now