FYI, when I clicked the submit button, I got the error message again, only this time I Did Not click the Reload Current Page on my browser, and closed it. When I came back here I found it had posted, apparently only to this one of 4 of topics of the same name, so guess the lesson is don't click the browsers Reload Current Page radio button.
Here is the error message I got, copied and am pasting here below FYI also:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, webmaster@securitycameraking.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.