500 Internal Server Error

[seminolecrew]

Hello, I am very new to this, and not too familiar with coding. I was helping a friend with their wordpress website, and then recently received the following error when trying to go to their website.

500 Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator www@ and inform them of the time the error occurred, and anything you might have done that may have caused the error.
Reason: Error parsing access file

The website is http://www.timberlineconstruction.net.

We called the hosting company. They said something was wrong with the htaccess file. But weren't much help after that. They accused us of doing something to it...pretty hard considering I never knew what the file was, and we hadn't touched the website in a few months. So anyway, that is what brings me here. I found out to view hidden files on my mac, and in dreamweaver. My htaccess file is as such in my folder titled web/. It says:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

Then I have another htaccess file in a subfolder web/wordpress/htaccess. That files says:

ForceNoProxy On

Can anyone help me on how I can get this website back up and running? Thanks so much.

Corey