Flowmeter or solenoid click? HELP

[AlenTan]

I just bought La Spaziale S1 Vivaldi II at OCt 2020

Yesterday just suddenly my group head water cant come out.
refer back my youtube
https://youtu.be/oLbOs_6ao2o

i very new here, May help me to take a look?

[Velcro]

I can't hear the pump/motor in the video. Is the pump spinning? Is the motor spinning without the pump?
Having had a similar problem it was my pump sized.
The flowmeter would more likely cause inconsistent pulls. I've had that happen after descaling. Had to open it up and remove a stuck piece of loose scale.
hopefully you have it fixed already

[slo]

First I noticed that the lights on the display are not lighting up as normal so the machine seems to detect a problem. These lights usually come on when there is a blockage.
Also the pressure gauge shows line pressure but when you initiate the dose the pressure does not go up nor is there any water coming out. This seem to indicate that the pump is not running, but that is possible since there could be some pre-infusion time programmed in and the video is not long...
Also, the group head solenoid does not seem to work since there should be at least line pressure water coming out when the dose is initiated during pre-infusion.
This is all I can think off with what I see.