HTTP ERROR 500 for front page and admin page

[sssteven4]

I need help please, my website has somehow crashed and I cannot access it from front page or admin page.  I recently installed "Beetailer" to my site, and it installed ok and my site was working fine. However when I tried using beetailer it would not let me log into facebook so I tried to  enabled the complier hoping that would help and that was the end of my website.  I got the 500 internal server error, and I cannot access my website at all.  I have checked the log and I have no idea what it means and what to do about it. 

I am going to attach my log file and hope one of you can figure out what I can do to fix my website.  I am not a programmer so I haven't a clue what the log means.. 

Thank you for your help in advance.

Steven

[sherrie]

Hi @sssteven4, it looks like you need to make sure the PDO extension is installed on your server. You should be able to work with your hosting company on this.

Details on installing the PDO extension: http://php.net/manual/en/pdo.installation.php

[sssteven4]

Thank you for your reply, however I checked with my settings and the extension that you mention is already installed .

What else can I do to try and fix the problem I have?

Thank you.

Steven