Website Crashing After Upgrading To vBulletin 4.1.5 Patch Level 1

[VaeVictus]

I have a problem where my website would just freeze and do nothing unpredictably at times. There would be no 404 error message or any message at all, it would just freeze. I've been getting complaints from users (using different browsers) about the website freezing also. Subsequently, these crashes occurred shortly after I installed 4.1.5 pl1. Can anyone point me to the right direction to fix this problem?

[BSMedia]

Not without access to your server error logs or at least the URL to your site to see if a script is hanging.

[VaeVictus]

Here's the URL: http://programs.crdg.hawaii.edu/tsi/

It may or may not hang once you visit the website. I'll be back in a bit to get the error logs.