Describe the bug

I just updated a server of mine, using PPA.
I see that current version is 4:5.1.1+dfsg1-2+focal1, while previous was (apparently) 4:5.0.4+dfsg2-2~bpo10+1+focal1.

Nothing is working anymore, I started getting strange errors in log, with complains about Symfony missing files (first services.yml, then services_controllers.yml). After creating such files, error is Unknown named parameter $$dbi in /usr/share/php/Symfony/Component/DependencyInjection/ContainerBuilder.php:1140. The web interface is always in error 500.

To Reproduce

Not sure about it

Expected behavior

Working phpmyadmin

Server configuration

• Operating system: Ubuntu 20.04.2 LTS
• Web server: nginx/1.18.0
• Database version: mysql Ver 8.0.25-0ubuntu0.20.04.1
• PHP version: PHP 8.0.7
• phpMyAdmin version: 5.1.1