I got this error today and I don't even understand what is it about.

user error: Out of memory. Restart daemon and try again (needed 32776 bytes)
query: SELECT f.fid, f.title, f.description, f.image, MAX(i.timestamp) AS last FROM aggregator_feed f LEFT JOIN aggregator_item i ON f.fid = i.fid GROUP BY f.fid, f.title, f.description, f.image in /home/skatecof/public_html/words/includes/database.mysql.inc on line 66.

The fact is I can't access to the aggregator/sources page but I can see the single aggregator/sources/ pages and the aggregator/categories page.
I could update manually clicking the sources which should have updated but weren't.

I installed aggregator2 and Drupal 4.65

Any help would be appreciated.