Not getting notifications of new topics

Hello

I am not getting notifications regarding new topics in the groups I have joined . Till yesterday I was getting . But then I marked all notification as "read" and now even with new topics coming in in the group I am not getting notification. Have I inadvertently made any changes in my settings ?

Not sure if will I also get notification for replies to this thread or not.

Wasn't sure where to ask this question so wrote here.

Apologies if this is not the right place