error when download page with items

Hello
After installing hika 1.6 I have errors #500 when downloads some pages. They don't downloads properly.
Examples:
hotusafurniture.com/family-dining-sets
hotusafurniture.com/casual-dining-sets

and in Back-End, when I want edit some products, page with product don't download properly (see attached picture)

Thank you

Hi,

Your links are working fine for me but can you please try to download the last version of HikaShop from our website, install it over the other version and then tell me if it works ?

I have updated hikashop already.

I resolve a problem. I have updated the memory limit in php.ini file.
Thank you