I purchased Machform this morning for a friend and we're trying to set it up. When I try to run to installer.php file it just goes to the white screen. I've set it up in the past for others and never had an issue. I created the database, user and password before installation. The hosting company is Justhost and the php version is 5.6.29. Any help to resolve this issue would be greatly appreciated. We would like to have it up and running before the end of the weekend.