Laravel5.0/5.1 application deployment error

When I transfer my laravel5.1 application to the server the following error occurs

Internal Server Error.
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, ectlink@gmail.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.

Application Version Apache version: Apache/2.2.31 PHP version: 5.6.14 MySQL version: 5.1.73

System Info Distro Name: CentOS release 6.7 (Final) Kernel Version: 2.6.32-573.18.1.el6.i686 Platform: i686

via Chebli Mohamed