error message..

Sorry, screen-scraper will need to exit because it can't bind to the following port(s): 9001. Please see this page for more information: http://www.screen-scraper.com/support/faq/faq.php#PortBindingError
~

[b]this is a log message.[/b]

i'm running linux machine on command line mode.
i have excute './start_server.sh' and run it './excute.sh' that was involved
following script.

- java -jar screen-scraper.jar -s "aaa.com" > log/aaa.log -

then we got the upper message.

it's why?
we have no firewall. because test it.
but, it was never ran it.
i refer the site " http://www.screen-scraper.com/support/faq/faq.php#PortBindingError"

i cannot find the solution of the problems.
what is need for ours?

[b]
and second question is for license.[/b]

we have a license. but i lost my account information.
how can i get the information of license.
and how can i install license key to the installation on system.