Impressa S95 does not flush......

Hello
,I have a Jura Impressa S95 that shows the following errors: Machine ON, please wait, flush system, coffee can be made. Only dry ground coffee comes into the pomace container, no coffee brewing.
Rinsing does not work, steam does. I also unscrewed the water hose from the boiler using an open-end wrench SW10, pulled off the cotter pin at the bottom of the valve and cleaned the hose. After reassembling it properly in my opinion, the screw connection leaked after the 90° bend. At first I thought that metal on metal can't seal and possibly an o-ring fell out. But even with a small silicone O-ring I do not bring the screw connection tight.

The you will probably no longer get tight. There are clamping rings (probably from Serto) on it that seal themselves by tightening. A sealing ring does not come in between.
Best to buy a new hose, or make one yourself if you have the parts.

...thank you very much for the info !!!!!