Website code error

[Ubuntu]

On index.php on my phpbb forum it says: Smart Errors: Could not connect to database using {root} and {***********} @ {maindb}

But everything is setup right, I even have another website running off the same credentials of that so I know it's right.
 
Also I made a new database and tried it again, same thing

Need this fixed ASAP

 

[Brad]

Have you aloud that IP connect to it?

just run this

GRANT ALL ON yourdatabasename.* TO root@'%' IDENTIFIED BY 'yourRootPassword';

 

[Ubuntu]

I have, like I said I run a retro off of the same mysql connection and it connects fine, I think it's the actual web installation but i'm not for sure.