ADMINER - after creating host entry of adminer.php , error like that None of the supported PHP extensions (MySQLi, MySQL, PDO_MySQL) are available

Question

I used Ubuntu 18.04.6 LTS.

Before creating the host entry of adminer.php in Ubuntu, it worked fine.

But after creating the Virtual host entry of the adminer, there is an error like that:

None of the supported PHP extensions (MySQLi, MySQL, PDO_MySQL) are available

I have already installed, but still get the same error.

I have also tried below trick:

;themextension=pdo_pgsql
;extension=pgsql

and removed colon from php.ini.

But still the same problem.