Why am I having this message

[monky91]

Just now, I am installing mambo, some Open Source that make editing template easy, but know what?

I receive:

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, webmaster@gamerzproz.x10hosting.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

after several times clicking INSTALL.php and installation/index.php, knwo why I click. Because I don't have instruction how to install.

That's why I try to install my way.

Hope you can help me, fixing the problem not to receive this message.

 

[Fedlerner]

This message generally appears when you've the wrong permissions for the files/folders. Try to found a Mambo's guide to install it. You'll need to CHMOD some files...

 

[monky91]

This message generally appears when you've the wrong permissions for the files/folders. Try to found a Mambo's guide to install it. You'll need to CHMOD some files...

Hmm, I am now install Joomla, again, there is some problem... but down...