Yandex periodically checks the sites to warn users of dangerous pages. Last checked (less than two days old) showed that the site was placed malicious code. This could be either at the request of the owners, and without their knowledge - as a result of malicious acts.
Malicious code:
It contains Mal / JSShell-B (according to the company Sophos).
it's not a problem for me, but i would in your place would have written in support of Sophos about false positives.