Adminer

Adminer is a lightweight alternative to phpMyAdmin

https://www.adminer.org

Installing

Assuming you want the English MySQL version then you might want to do something like:

cd /var/www/vhosts/default
mv pma pma-backup
mkdir pma
cd pma
wget https://github.com/vrana/adminer/releases/download/v4.7.0/adminer-4.7.0-mysql-en.php
mv adminer-4.7.0-mysql-en.php index.php