Add Product with problem

-- url of the page with the problem -- : localhost
-- HikaShop version -- : 2.6.4
-- HikaMarket version -- : 1.7.2
-- Joomla version -- : 3.6.5
-- PHP version -- : 5.6.25
-- Browser(s) name and version -- : firefox 51

Vendors have 2 way for adding product
1-Menu
2-cpanle products>new

i have problem with both of them:
1- in the first way (menu of hikamarket add new product) every thing is good bud file upload does not work well it uploads file to the main directory (media\com_hikashop\upload\safe) but it most be upload it to the vendors own folder (media\com_hikashop\upload\safe\vendorX) and after purchasing this product , at download page it says that the file does not exist! or it also at the page of adding product i can not edit file (attachment1)

2-oh no in this way there are many problems so vendors can not even edit their products from cpanel>products as you see in attachment2 file there are many problems:
_ Upload image
_ Upload file
_ Editor is on simple code!
_tags , related products , categories ,...
does not work!


we have same modules at both page 1 & 2


also i have a code that scrolls my page :

<div style="visibility: hidden; top: -9999px; position: absolute; opacity: 0;"></div>

element.style {
    opacity: 0;
    position: absolute;
    top: -9999px;
    visibility: hidden;