Error after installation

Hello,
The tool you have purchased is a Quick start package which is a complete Joomla build along with the vRestaurant tool and the template. You can not install it on a Joomla website ( as It's a Joomla website in itself ). It's an Akeeba backup, Please install it like you instal a normal Joomla website. A separate Component zip file has also been added to your account, Please download and install this package on your Joomla website.

I installed the package twice and keep getting the same same error message Please help:
Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.