Your link is not opening. If possible then please tell your website and landing page URL.
Also, you got this link from Google team or somewhere else? If from somewhere else, then:
You should contact the AdWords support team via phone (see number and support timing on below link). Call them on working timing and request them to send you some reference links of malicious code so that you can investigate further. Usually, support team send an email with reference links to help the customer to solve the issue.
Do follow-up with the support team. When you get the reference links from support team investigate further and try to remove those link reference from your website.
Adwords team have an internal tool, which goes beyond and checks code inside the js/CSS and other files in your hosting environment. Further, switching the content of the page, injecting any code in the page (like ads), and infected hosting environment may cause this issue in AdWords tool.
I double checked your website and found nothing. From where you are getting malware link?
But, when I see the link you give in your initial thread then I can see that it's for the native advertisement on your website.
As I already told you, switching the content of the page, injecting any code in the page (like ads), and infected hosting environment may cause this issue in AdWords tool. For me, it's advertisement on your website that switching the ads whenever the page loads.
Side notes: If your business model is to get visitors from AdWords and then earn from the advertisement on your website then this business model is not allowed with the Adwords.