After upgrading to HikaShop v3.1.1 - cannot access products in admin

-- HikaShop version -- : 3.1.1
-- Joomla version -- : 2.5.28
-- PHP version -- : 5.6.30
-- Browser(s) name and version -- : Chrome 58.0.3029.110 (64-bit)
-- Error-message(debug-mod must be tuned on) -- : 500 - An error has occurred.
JHtml: :jquery not supported. File not found.

Return to Control Panel

Call stack
# Function Location
1 JAdministrator->dispatch() /home/kahworld/www/sat/administrator/index.php:46
2 JComponentHelper::renderComponent() /home/kahworld/www/sat/administrator/includes/application.php:153
3 JComponentHelper::executeComponent() /home/kahworld/www/sat/libraries/joomla/application/component/helper.php:348
4 require_once() /home/kahworld/www/sat/libraries/joomla/application/component/helper.php:380
5 hikashopController->execute() /home/kahworld/www/sat/administrator/components/com_hikashop/hikashop.php:54
6 JController->execute() /home/kahworld/www/sat/administrator/components/com_hikashop/helpers/helper.php:1832
7 ProductController->edit() /home/kahworld/www/sat/libraries/joomla/application/component/controller.php:761
8 hikashopController->display() /home/kahworld/www/sat/administrator/components/com_hikashop/controllers/product.php:51
9 JController->display() /home/kahworld/www/sat/administrator/components/com_hikashop/helpers/helper.php:1853
10 ProductViewProduct->display() /home/kahworld/www/sat/libraries/joomla/application/component/controller.php:722
11 ProductViewProduct->form() /home/kahworld/www/sat/administrator/components/com_hikashop/views/product/view.html.php:27
12 JHtml::_() /home/kahworld/www/sat/administrator/components/com_hikashop/views/product/view.html.php:1497
13 JError::raiseError() /home/kahworld/www/sat/libraries/joomla/html/html.php:123
14 JError::raise() /home/kahworld/www/sat/libraries/joomla/error/error.php:251

I upgraded this site last week and had no occasion to look at the products. But when attempting to do so today, I get the above error message.

Thanks for your help!
Gary Marsh

Thank you for your help! The patch resolved the problem. I'm grateful!
Gary Marsh

Hi Nicolas,
I have the same problem of gmarsh (Joomla! 2.5 and Hikashop 3.1.1) but when I try to install the new package it return a 500 error. How can I solve the problem?

The zip package works great and fix the problem. Thanks a lot!