Loading the database library causes a freeze

[eluser]elverion[/eluser]
I've checked the error reporting settings as requested. Still, no errors are reported. The only thing that shows is in the access log; and the only information that gives is that it returned code 500 (internal system error) on that access.

I've checked the database settings, as well. They appear to be fine. I'm able to access the database just fine using Navicat (using the same user). If it were an error connecting to the database, it should display that error. This just freezes up.