A framework designed to run multiple advanced applications on the same code base. It can be used as a library of useful classes for existing code, or a complete end-to-end framework for new applications. It is mature, stable and actively developed.
I can't install the framework, there isn't setup.php in the zip that is uploaded maybe you could check it. If I only open the index show me this message: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator at email@example.com 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.