Ground coffee spread everywhere

Hello everyone,
For some time I have the problem with my Siemens eq6 s100 that very much coffee powder is distributed everywhere in the machine. Thus, the cleaning is very time consuming.
I attach a picture of how it looks after a week since the last cleaning. (At about 2 latte a day)


Can someone help me where the problem can lie?
Have already "played" with the grind but without improvement

MfG

My guess is a sluggish brew group.
The best thing to do is to disassemble it and clean everything, but please don't do it in the dishwasher!

Install new seals, grease them and the problem should be solved.

You can find disassembly instructions at Komtra.de or Juraprofi.de, for example.