I am using prohosting for my website and when i click on search it gives me this line. my site address if you want to look is http://balder.prohosting.com/askagent/

The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, vex@freetest.shadowlink.net 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.

How do i fix this

Using the url you've provided, I was able to access a config file located at: http://balder.prohosting.com/askagent/cgi-bin/default.cfg

If this is the config file you are using for your database, you must change the variables to reflect your database location. This line for example:
$db_dir_url = "http://penguin/alex/dbman";

If you give me access to your account I'll set dbman up for you.