DNS - Malware issue

Description

I need urgent assistance. I asked a website developer to insert a full image background for my Squarespace website, which he did without checking whether the Squarespace proprietary code template supports a background image. When code was added to enable that feature, it disrupted the proprietary header code and somehow interfered with the DNS, causing the site to redirect to a malware page or allowing malware into the code.
This URL http://m.blueeye-macro.com/viewtopic.php?p=899897&sid=15d6c36c033cd5cded8086e5176413cb is
There is some sort of forwarding code that, when Google searches for my site, it ends up at this malware site (attached)—this is exactly what is happening. But I do not know how to fix it.
The DNS for the site is routed through Cloudflare. I will pay $100 to anyone who can solve this problem for me as quickly as possible. My website ahs been like this since yesterday and I am losing money all the time. I realise I am between a rock and a hard place, but I will not accept the proposal until you tell me exactly how you propose solving the problem and how long it will take. I am paying a 50% deposit.