Application installation from APS catalog fails on Plesk server: The 'mysqli' extension was not found

Symptoms

Application installation from APS catalog fails on Plesk server:

PLESK_ERROR: Error: Unable to install the app because its installation requirements are not met. Contact your hosting provider to resolve this problem.
Requirements
PHP extension The 'mysqli' extension was not found

Cause

PHP handler selected for the domain does not have mysql or mysqlnd extension is disabled.

Resolution

1. Log into Plesk.

2. Find the PHP handler version which is used by affected domain, e.g example.com, in Domains > example.com > PHP Settings:

   

3. Enable extensions both mysqli and mysqlnd (for Linux only) extensions in Tools & Settings > PHP Settings > 7.0.30 FPM application:

   

   Note: If those extensions are missing, install them as described in the article.

4. Re-initiate the installation of the application.

Additional Information

Unable to install the SugarCRM on Plesk server: The 'mysql' extension was not found
Websites fail to be loaded: Your PHP installation appears to be missing the MySQL extension which is required by WordPress