URGENT HELP- 'Add to Cart' not working with Joomla native SEF

Aw: URGENT HELP- 'Add to Cart' not working with Joomla native SEF

???
url?

Aw: URGENT HELP- 'Add to Cart' not working with Joomla native SEF

product url:
http://new.autosystem.ir/component/jshopping/%D9%85%D8%AD%D8%B5%D9%88%D9%84%D8%A7%D8%AA-%D8%A8%D8%B1%D9%82.html?Itemid=0

error url:
http://new.autosystem.ir/component/jshopping/add.html?category_id=4&product_id=10&Itemid=799

Also, I think the problem is resolved when disable SEF. But I do not want my site SEF be disabled.

Aw: URGENT HELP- 'Add to Cart' not working with Joomla native SEF

https://www.webdesigner-profi.de/joomla-webdesign/joomla-shop/forum/posts/7/955.html?lang=en