Installation problems

Description of issue or problem I’m having:

We tested installing the script on the subdomain, however, we received the following error message regarding the database:
Errors occurred during installation
A database error has occurred: could not find driver (SQL: create table `announcement_types` (`type_id` bigint not null auto_increment primary key, `assoc_type` smallint not null, `assoc_id` bigint not null) default character set utf8 collate 'utf8_general_ci')

Steps I took leading up to the issue:

What I tried to resolve the issue:

Application Version - e.g., OJS 3.1.2:

Additional information, such as screenshots and error log messages if applicable:

Yes, same problem stays. Can you help to complete?

Please verify that you meet these requirements:

2. Database
    - Database engine is innoDB for database and all tables (MariaDB/MySQL only)

Taken from: How to Upgrade