Help installing phpbb3

[whoopz]

I uploaded it into my public html....I try to install it on my site. Once I proceed to the first step I get this message

Warning: Cannot load module 'SQLite' because required module 'pdo' is not loaded in Unknown on line 0
[phpBB Debug] PHP Notice: in file /install/index.php on line 440: Cannot modify header information - headers already sent by (output started at /includes/functions_install.php:24)
[phpBB Debug] PHP Notice: in file /install/index.php on line 441: Cannot modify header information - headers already sent by (output started at /includes/functions_install.php:24)
[phpBB Debug] PHP Notice: in file /install/index.php on line 442: Cannot modify header information - headers already sent by (output started at /includes/functions_install.php:24)
[phpBB Debug] PHP Notice: in file /install/index.php on line 443: Cannot modify header information - headers already sent by (output started at /includes/functions_install.php:24)

[pghcollectibles]

have you created the database and database user with grant all permissions selected.
have you read the documentation (http://www.phpbb.com/support/documentation/3.0/quickstart/quick_installation.php)?

you could use simple scripts (https://www.simplescripts.com/script_details/script:phpBB) to install it