The machine struggles to move grounds through

Your brew unit is probably dirty and needs cleaning. However, it won`t always help just running the cleaning program. Try to clean out all the used ground that is stuck inside the brew unit; use your fingers or a toothbrush maybe. Then run the cleaning program. It may be smart to run the program once or twice after this too, but you don`t have to use the tablet everytime.

It is the grounds blade that holds the used ground container so you can`t get it out. This means that the brew unit stops in a wrong position, and don`t get back to grinding position before timeout. If you shut down the machine for a few hours, it usually moves back during startup. But of course; this indicates that you need to clean up inside...