There was a problem setting up your database

[john]

There was a problem setting up your database, ./. An attempt will be made to find out what's going on so you can fix the problem more easily.

Checking supported SQLite PHP extensions...

PDO: installed
PDO SQLite Driver: installed
SQLite3: installed
SQLiteDatabase: not installed

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What should i install ? I have php 7.0, apache2 and Sqllite3 installed.