cannot reboot

I stop my server and the software so I can properly shut down my laptop, however when I want to start again, it says “An error has occurred. This could mean a number of different things, but generally indicates that you have a misspelt address, or are trying to access a page that you are not permitted to access. If you cannot solve this problem by retyping the address, or through other means, please contact your system administrator.” how can I solve this??

Can you tell us more about the OS and server stack that you are using? Thanks, Ross.