splashingpixels.com on "[Plugin: WooCommerce - excelling eCommerce] Please help-Fatal Error"

You can also try this... edit your wp-config.php and add in the following line:

define('WP_MEMORY_LIMIT', '64M');

This may or may not work depending on your hosting. So if it doesn't, you need to ask your host to do it in the php.ini level.