Error when registering on Vb 3.7.2

[ramta]

When somebody tries to register the vb system wont allow them to complete the process because when they click on OK or ACCEPT they get only a blank screen saying about a Database error and soon after that i receive an email regarding that error:


Database error in vBulletin 3.7.2:

Invalid SQL:
INSERT INTO user
(options, parentemail, salt, passworddate, password, email,
username, usergroupid, languageid, usertitle, customtitle, showbirthday,
birthday_search, birthday, timezoneoffset, ipaddress, displaygroupid,
joindate, lastvisit, lastactivity, autosubscribe, showvbcode, threadedmode,
reputationlevelid, reputation, pmpopup, maxposts, daysprune, startofweek)
VALUES
(11535447, '', '2&D', FROM_UNIXTIME(1216056973),
'e833cc0e3bc63a43c0acaa70a190cfc8', 'jrcccdfvgfer@hotmail.com', 'jrcoxxvfr12', 2,
2, '', 0, 0, '1984-12-16', '12-16-1984', '-6', '72.50.98.25', '',
1216056973, 1216056973, 1216056973, -1, 1, 0, 5, 10, 0, -1, 0, -1);

MySQL Error : Duplicate entry '4294967295' for key 1
Error Number : 1062
Request Date : Monday, July 14th 2008 @ 01:36:13 PM
Error Date : Monday, July 14th 2008 @ 01:36:13 PM
Script :
http://wwwxxxxxxxxxxxxxx.com/foro/re...p?do=addmember
Referrer :
http://www.xxxxxxxxxxxxx.com/foro/re...p?do=addmember
IP Address : xxxxx.98.25
Username : jrcosmer12
Classname : vb_database
MySQL Version :

i have this Hack Cyb - Visitors in Last X Hours
Installed

Any help would be greatly appreciated.
thanks!!!