FrontPage Error

FrontPage Error.
User: please report details to this site's webmaster.

Webmaster: please see the server's application event log for more
details.

The email from the form is being sent but I get the error message as
shows.

Following is the code on the page:
<form method="POST" action="--WEBBOT-SELF--" webbot-onSubmit
language="JavaScript" name="FrontPage_Form2" >
<!--webbot bot="SaveResults" S-Email-Format="TEXT/PRE"
S-Email-Address="facilities@monitor-nhsft.gov.uk"
B-Email-Label-Fields="TRUE" S-Builtin-Fields="REMOTE_USER Date Time"
startspan U-Confirmation-Url="confirmation_request_page.htm"
U-File="confirmation_request_page.txt" S-Format="TEXT/PRE"
S-Label-Fields="TRUE" B-Reverse-Chronology="FALSE" S-Date-Format="%d %B
%Y" S-Time-Format="%H:%M" B-Email-Subject-From-Field="FALSE"
S-Email-Subject="Meeting Room Booking Request"
U-Validation-Error-Url="validation_failure_page.htm" -->
<!--webbot bot="SaveResults" endspan i-checksum="8160" -->

I have tried removing the onSubmit attribute but nothing seems to work.
I am opening a disk based web and publishing using front page web.

Please help.

Thanks,
Shaleen