Krups EA 82 grinder, suddenly no longer grinds

Hello
,suddenly this
morning our Krups EA82 failed:wacko:. The grinder at the top does not rotate anymore, but there is a whirring sound, then only hot water comes out of the outlet. But the machine doesn't output any error - for them everything seems normal - I shot a video and put it in my dropbox. Link:
https://www.dropbox.com/s/r9vi7mkcenwaqd0/20200206_081029%5B1%5D.mp4?dl=0Ich

I am afraid that I have to replace the grinding mechanism, because I think the noise is coming from the motor and
the connection to the grinding cone is defective.
Thank
you
for
your helpPeterPS
: are the EA81 and EA82 series grinders identical ?

Problem solved. Motor of the grinding mechanism defective. Complete grinding mechanism exchanged ... now it purrs again like a kitten :-)