What is this blocking my progress?

Can someone please explain what this icon is blocking me from moving past my current level? And how do I get past this?

Welcome @Charlie_Williams
I believe you are to a point where NEW levels have NOT been released yet.

Well I call it a hammer…
It’s there because they will eventually put in new levels. Until then you have to wait for them to do so. It’s aggravating… I know. Been there done that. In fact if you have ever heard of the song Hammer Time. Just sing the song and dance to the beat. . I did… And it didn’t aggravate me as much…