i purchased the wrong add ons

i purchased the wrong add ons

hi
i need help. i wanted to buy a add ons where i can select right on the product list how many i want.
but i think i purchased the wrong addons

(Minimum/maximum number of products for usergroup) after installing this add ons buy buttuns disappeared(attchment)

now i dont get the buy Buttun option on the product can you help me how to get the buy buttun back and also which add ons i should have to be able to select the quantity right on the product self without going to details,

Thanks in advance

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Aw: i purchased the wrong add ons

https://www.webdesigner-profi.de/joomla-webdesign/shop/plugins/quantity-in-product-list.html?lang=en
(not works with attribute)

https://www.webdesigner-profi.de/joomla-webdesign/shop/addons/ajax-cart.html?lang=en

Aw: i purchased the wrong add ons

2. -(Minimum/maximum number of products for usergroup) after installing this add ons buy buttuns disappeared(attchment)
Addon does not hide the buy button.