Fatal error: allowed memory exhausted

I have been using the Jetpack plug in with only the Stats and Twitter widget enabled.

It seemed to run just fine for about a month. But I have received the following errors:

A user with Author attributes could not see stats or get a log out prompt. The errors were:

Fatal error: allowed memory size of 33554432 bytes exhausted (tried to allocate 64049 bytes) in /data/user/xxxxxx06/htdocs/main/wp-content/plugins/jetpack/modules/stats.pho on line 296

Fatal error: allowed memory size of 33554432 bytes exhausted (tried to allocate 122880 bytes) in /data/user/xxxxxx06/htdocs/main/wp-includes/class-simplepie.php on line 3736

I logged in as admin, and deactivated jetpack and that fixed the issue for the author user.

The next day I logged on as admin, and reactivated Jetpack. The site remained avaible for the public, but I could not get to the dashboard with the following error showing on a blank page:

Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 491520 bytes) in /data/user/xxxxxx06/htdocs/main/wp-admin/menu.php on line 254

I did a FTP to the site and deleted the Jetpack folder, and I could once again access the dashboard.

Q#1: who is user 2373306? Is that the ID for the jetpack plugin? Different users were logged on when those errors hit, but it always is the same number.

Q#2: what in general is happening? Allowed memory size seems huge, yet something (Jetpack with only two modules active?) seems to be hitting the wall.

NB: with the old WordPress Stats plugin (which is now part of Jetpack) I never had any memory issues. From the host manager’s page it tells me that I’ve only used 4% of my allowed SQL space and the WordPress front end is using only 11% of my allowed space.
version info: WP v3.2.1; Techozoic Fluid v1.9.4

So I don’t know what the problem is or what to do about it.