Error In Profile

[محروم.كوم]

Getting the following error in the profile of imported users

PHP Code:

Warning: mktime() expects parameter 4 to be long, string given in [path]/includes/class_userprofile.php on line 260

Exactly as described here > http://www.vbulletin.com/forum/showthread.php?t=301283

I think its also related to birth dates, and now ive setup birth dates to be required fields on my site.

Ive checked some users and their dob appears like - December 31 (2009)

In the database it shows as two dashes side by side '--'

Is there a way to fix it so I dont get this error...talking about 200 odd users with this problem.

Ive encouraged them to put in their DOB again, but alas, most dont bother. __DEFINE_LIKE_SHARE__