Web Shield blocking legitim websites and iFrames

[martins_pedro]

Since the last update, Web Shield keeps blocking several websites and even embed code (audited by Thirdweb) that I have on my own website.
What can be causing this? It's not a problem from the websites because they were all working before the last update.

[DavidR]

With no information to work with it is almost impossible to 'guess' what the issue might be.

Attach a screenshot of the Avast Alert window with the Details option selected (see attached image on how, click to expand).