Why is the water flowing out without a stream?

My Keurig is now brewing without a constant stream. It trickles from multiple sides. I’ve cleaned it, replaced filters and even tied a rubber band around the coffee filter. Is there a better suggestion? I️ don’t mind buying a new one however, I️ believe that this Keurig is fixable. I️ am just struggling with how exactly, given the circumstances.

Thank you,

Heather