I'm not saying to stop using the site, the major concern is effectively giving JAVA a free pass across the internet (not just for this site) when it is such a huge malware target.
That is why I was trying an alternative, that has worked on many ticker/streaming sites, but I guess the JAVA element on the site ads another dimension to the problem.
Another option would be to exclude that specific moneyam site in the avastUI > Settings > Active Protection > Web Shield - click the sprocket icon (settings) > Exclusions and add the URL for the moneyam URL you are using. That way JAVA is still enabled and monitored internet wise, but you exclude a specific URL. You may have to stop and restart the Web Shield for the exclusion to come into effect.
Note: Something you might want to consider first.
I don't know what browser you are using (?), but you could try disabling the Avast Online Security add-on and see if that has any effect.