[support] Problem with recreating the site

[Afan Pasalic]

Hi to all,
I had some issues with hosting company and had to leave them. But I did 
download all files and made mysql dump (using phpMyAdmin). The site was 
made with Drupa 6.
I tried to recreate the site on my mac mini (MAMP) but wasn't 
successful. I copied all Drupal files inside MAMPS/htdocs (didn't forget 
.htaccess) and created a database with the same name and imported mysql 
dump (using also phpMyAdmin).
Then made the change in settings file (line 92: $db_url = 
'mysqli://root:root@localhost/mydbname';)
Result is completely blank page.

What am I doing wrong?

Thanks for any help,
Afan