registration database error please help me!!!

[jackbanny173]

every time a member registers i get a email sent to me with the database error

i get this email sent to me,

Database error in vBulletin 3.6.5:

Invalid SQL:
INSERT INTO userfield
(field7, userid)
VALUES
('Male', 1695);

MySQL Error : Duplicate entry '1695' for key 1
Error Number : 1062
Date : Saturday, March 10th 2007 @ 01:53:30 PM
Script :
http://www.music-driveby.co.uk/forum...p?do=addmember
Referrer :
http://www.music-driveby.co.uk/forum...hp?do=register
IP Address : 81.97.98.208
Username : testing12
Classname : vb_database






when a member registers this after they fill in there details and press register they get this error message,

Database error
The Music-DriveBy Forum database has encountered a problem.

--------------------------------------------------------------------------------

Please try the following:
Load the page again by clicking the Refresh button in your web browser.
Open the www.music-driveby.co.uk home page, then try to open another page.
Click the Back button to try another link.

The www.music-driveby.co.uk forum technical staff have been notified of the error, though you may contact them if the problem persists.

We apologise for any inconvenience.



Please can some one help me out if some one help me i will pay you money ?10 please let me know thank you