Assessing risk?

So Avast has flagged a site from my employer - http://elearning.petbloodbankuk.org/ - which I’ve used loads and can access elsewhere.

What do I report to my company and how do I assess the risk, can I, should I, bypass the Avast block?

https://www.virustotal.com/gui/url/7a6fdd9d46d5a336bb6ae0c2b4bd8b63effbbf0fff0b809d4bc3bff02c1b405a?nocache=1

https://sitecheck.sucuri.net/results/https/elearning.petbloodbankuk.org

Seems hacked

Cheers, some useful info, will pass it on to our IT