Prima Donna Ecam 28.467b No Coffee

Hi, my coffee machine stopped pouring coffee ane water through the coffee dispenser however it pours hot water through the steam nozzle perfectly. When I try to go through the rinse cycle no water comes out and when I try to make a coffee it says grounds too fine, adjust mill and it just dispenses the coffee with water in the grounds tray.

I decalcified it numerous times and I cleaned it throughly. Yesterday I removed the coffee difuser opened it, cleaned it inside and oiled it and I also cleaned the little filter/grill the coffee diffuser is pushing the water through. After I did that it worked. Made about 5/6 coffees and now it stopped again. I cleaned everything again like I did yesterday but it didn't work this time. Any ideas what could be wrong with it? Thank you!