Problems with the cart: I insert the discount coupon and the products in the cart disappear!

Problems with the cart: I insert the discount coupon and the products in the cart disappear!

Hi, since yesterday my customers have been unable to complete their orders because as soon as they activate the discount coupon all the products in the cart disappear. Then I tried to update Joomshopping (5.3.3), joomla is 4.4.3 but the problem remains. Thanks for the assistance.
Patrizio

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Aw: Problems with the cart: I insert the discount coupon and the products in the cart disappear!

url?
coupon configuration?

admi login?
ftp?
(forum privat msg.)

Aw: Problems with the cart: I insert the discount coupon and the products in the cart disappear!

1. Problem in cache
Need disable All cache - configuration / system prugin

2. if not works ...
See plugins / module Cookie .. They often cause problems

Aw: Problems with the cart: I insert the discount coupon and the products in the cart disappear!

Hello again,
it doesn't work, I disabled all cache, cookies and the problem remains exactly as it was. It won't let me send orders. It makes me insert the products into the cart very slowly, it allows me to write the address, then when I go to payment to close the order it takes me back to the previous step and gives me "Error step". I tried with different browsers always the same problem.

Patrizio

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Aw: Problems with the cart: I insert the discount coupon and the products in the cart disappear!

Very strange behavior.

disable all module / plugins
Try use default template casiopea.
We need to look for the problem

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or Use kontake for order development (search problem)