Threat secured - Avast error or real threat?

Is this an AVAST bug or a real threat?

[i]We’ve safely aborted connection on fidelity.demdex.net because it was infected with URL.Phishing.

Tech support from Fidelity assures there is no issue.
It occurs on 2 different computers with 2 different browsers - each using AVAST.[/i]

Have run boot scan on each PC (no virus) and scan with Malewarebytes (no threats)

Appreciate suggestions.

https://sitecheck.sucuri.net/results/fidelity.demdex.net