[Solved] Error! MariaDB is not running on your system - database list could not be retrieved

Also, a good idea is to do a mysqlcheck -r --all-databases until all tables are okay. A mysqlcheck -o --all-databases woukd be also good to optimize or (in case of InnoDB) recreate all tables, so it’s assured that all is fine.

However, a mysqldump + reimport should have the same effect.