G'day Hetty and welcome. Just a couple of questions for you, to help diagnose your problem. What sort of grinder are you using? What sort of beans are you using and where did you get them from? Are you using the standard portafilter (handle) that came with the machine, or have you swapped it for a non-pressurised version? A- If you have the standard portafilter (handle) that came with the machine, its quite possible that dropping it did some damage to the pressurised basket inside the handle, which could have an effect on the crema production. B- If it's a replacement non-pressurised handle, it sounds like your beans could be a tad stale and/or not ground to the correct size, although this wouldn't be a sudden problem and I would be leaning towards option A. Maybe you could post a photo or two of the part that you're talking about. All the best, Steve.