Database Overload????

I am using the mandigo-seo theme, and have been for a year.

I am now getting this strange error message near the upper part of the sidebar ——————————————–
# <!–
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 262095 bytes) in /home/battery/public_html/wp-includes/general-template.php on line 1050
May 2009 M T W T F S S
—————————————————————
– After I uploaded data to the wordpress database.

It has been working fine, but when I checked after loading 20,000 items with a database uploader (for a catalog). At 10,000 it seemed to be ok.

Is there a limit that can be uploaded to the database?

What is causing error and how can it be corrected?

Mike