Fixing this 500 Error - Raspberry Pi /var/www to /home/pi/project/test.db

I'm just in the process of merging my project together and it's driving me nuts trying to figure this out.

Basically I have a python system written and it's residing in this directory:

/home/pi/project.

within that directory I have a sqlite3 db that I'm constantly updating and I'm trying to gain access to this from my dbConn.php file located in my /var/www directory.

However when given the absolute path

$dbh = new PDO('sqlite:/home/pi/Project/modules/test.db') or die("cannot open db");

I'm given 500 errors.

Is there anyway around this? or am I missing something stupid?