LG .htaccess Generator - internal server error

I’m having trouble utilizing the LG .htaccess generator. Here’s what I’ve done:

1. Downloaded the files and installed both files in their respective locations (extensions and language / english)

2. Added a blank .htaccess file in my root directory and set the permissions to 644

3. Under configuration:

- Enable LG .htaccess Generator for this site? Yes - The server directory where your .htaccess will be generated: Set to correct path: /www/eh#####/public_html/ (#### replaces actual site numbers)

4. Clicked “Submit and Generate”

What I immediately get afterwards is an “Internal Server Error.” At this point, I can’t access the site again until I remove the .htaccess file.

My hosting is at EngineHosting (a great host by the way.)

Any ideas?