sdu5z2ntus that domain name is controlled by our member @davwheat . I am not aware of any issue with it.
Has anyone access to the detailed BitDefender report and the others ? I remember last time someone reported a domain it was a nightmare actually finding what the detected problem was. Without the actual report it's difficult to confirm whether it's a false positive or not. Also it's only 3 out of 92 checks that signal a problem.
Even if the domain was compromised, it's used as an image URL, so it's very unlikely to cause harm to the visitor. Still worth investigating though 👍🏻