Résistance too high instead of Power is low

Good afternoon,

I have a Zwift Hub and since my last training (2 weeks ago) I have an issue. Résistance is high at the bzghininni g. Impossible to spin… ERG mode active or deactivate, issue persist…

Iis it possible to make a hard reset of Zwift Hub? Someone had already had this kind of problem?

Regards