very large error Log; boolean

[Average Mom]

Once in a while, I'm getting an error log that appears, and it's HUGE. One day it's not there and the next it's 47mb. It basically contains the same error over and over (over a span of 20 seconds or so).

[11-Feb-2011 22:54:37] PHP Warning:  mysql_real_escape_string() expects parameter 2 to be resource, boolean given in /...Sources/Subs-Db-mysql.php on line 143



Here's what I'm working with:

SMF 2.0 RC4

with TP 1.102

I'm using the Outline by Dziner theme

my mods:
1.    Sitemap    2.2.0
2.    Member Awards    2.2.3
3.    Referrals System    3.0.1
4.    TinyPortal    1.102
5.    More Spiders    1.2
6.    Users Online Today    1.5.6
7.    Contact Page    2.1.1

[Kermit]

Can you please add your Subs-Db-mysql.php to your next post ?

[Arantor]

Don't bother attaching it at all. You will almost certainly find it is the stock file as shipped with SMF itself.

It's the same problem as discussed, and much further debugged, in http://www.simplemachines.org/community/index.php?topic=423482.0 complete with a possible solution at the end.