Being blocked from a site which is now clean

How do I remove a block on a website I know to be operating normally now

First, I’m an Avast user and not an Avast Team member.

First I would suggest confirming that with other sites:

You can report both a False Positive for the URL

As you didn’t post any information on the Alert it isn’t possible to check here.
A screenshot of the Avast Alert with the Details option selected could help.
Create a screenshot on your computer and save it locally. Using windows explorer or other file management program, drag and drop into your post.

Of course you could add an exception (Menu > Settings > Exceptions) for the site, not something I would advise unless you are 100% certain (e.g. the above links give it a clean return).

Thank you very much for that very helpful reply. I have filed a copy of it for future use. I am pretty well on into my 80s and the only thing I could think of to do was to disengage from Avast. This fixed the problem immediately. However when I immediately redownloaded and logged into my account I wasn’t quite sure that I was still regarded as a paying member. I think I am as I can see all my details again! I was sorry I had not the patience to wait for a reply.

You’re welcome.