Memory exhausted for one product only

Hi,

32M can be quite low for a joomla website and product pages can be quite resource hungry when you have a lot of variants (each variant of a product is like a product so if you have a product with 500 variants, that's 501 products loaded on the product page).
The simplest will be to ask your hosting company to increase your memory limit to 64M.
Another solution would be to use custom item fields instead of variants/characteristics since you don't need to change the price/image/description based on the selected variant. Custom item fields won't eat any memory so it would only load one product on the product page, greatly helping you staying below your 32M memory limit. Note however that custom item fields are only available in the Business edition of HikaShop.