Category creation, Product creation is not work

-- url of the page with the problem -- : /administrator/index.php?option=com_hikashop&ctrl=category
-- HikaShop version -- : 2.5.0
-- Joomla version -- : 3.3.3
-- PHP version -- : 5.6.0
-- Browser(s) name and version -- : Google Chrome 45.0.2454.101 m

Hi.
I try to create category. Result is error like on screenshot

Error text:"ERROR save errors", and category is created, but not showing in tree
Try to delete category, wich created with this error, category is not deleting, but i have success message



i can't delete this category, can't edit it

Try to create product, and have



Product is not created

HikaShop Starter: 2.5.0
Joomla 3.3.3
PHP 5.6.0

Hello,
Can you download the last Hikashop version through our website, install it, and test it again ? If it's still not working, can you :
- Activate the Joomla debug mode ("Administration->Global configuration->System->Debug System/Language")
- Set the "error reporting" option of the Joomla configuration to "maximum"
- Test it again so that you can see if it display an error message which will help you to understand from what your issue is coming.
Thanks.