Устранить проблемы сайта ( был взлом)

Наш сайт 101wow.ru постоянно взламывают и через него рассылают различный спам. Необходимо в срочном порядке принять меры для устранения: 1) обновить CMS ( OpenCart)2) в CMS указаны проблемы, их надо устранить.-Ошибки версии Desktop:4 Rules not passedYour page has 14 blocking script resources and 16 blocking CSS resources. This causes a delay in rendering your page.Remove render-blocking JavaScript:Optimize CSS Delivery of the following:Optimize the following images to reduce their size by 16.8KiB (26% reduction).--Ошибки версии Mobile:6 Rules not passedLeverage browser caching for the following cacheable resources:In our test, your server responded in 1.4 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.Your page has 14 blocking script resources and 16 blocking CSS resources. This causes a delay in rendering your page.Remove render-blocking JavaScript:Optimize CSS Delivery of the following:Optimize the following images to reduce their size by 16.8KiB (26% reduction).