I understand that you are looking for someone to fix a Prestashop bug, specifically it doesn't login in the backend not displaying any error. If debug mode on, it gives this error: [INTERNAL] /home/website/www/override/classes/[login to view URL] line 182 - Declaration of Link::getProductLink($product, $alias = NULL, $category = NULL, $ean13 = NULL, $idLang = NULL, $idShop = NULL, $ipa = 0, $force_routes = false, $relativeProtocol = false, $addAnchor = false) should be compatible with LinkCore::getProductLink($product, $alias = NULL, $category = NULL, $ean13 = NULL, $idLang = NULL, $idShop = NULL, $idProductAttribute = NULL)
Thanks