I run a few Prestashop stores and occasionally get errors or have problems when I need support asap to keep the store running. For example, today, when I click on Shopping Carts in the Customers menu, I get the following error:
Invalid address #191
at line 401 in file classes/[url removed, login to view]
(Address #191 was deleted manually earlier today)
Please let me know if/how you can help and what your experience is with maintaining Prestashop.