www.wysiwygwebbuilder.com

Not related to Webbuilder.
This started happening since the begining of January 2020. Whenever I post on the forum and a reply is posted I do not get an email notification about the reply.
Though, I have checked, "Notify me when a reply is posted" when posting.
Pablo, can you please check.

Have you looked in your Spam folder - mine often finish up there!

Either the emails ended up in your spam or your ISP is blocking them.

Not in SPAM folder.
I wonder why will my ISP block it...till December I was getting every email from the forum.

Nothing has on the forum. I cannot think of any other reason why emails would not arrive in your inbox.