Recovery Score at 0

My recovery score is set at 0 since 2 days with the following message: « to see your Recovery Score for today, sync last night's vitals and sleep session to get a clearer picture of your rest and recovery. » Sleep hrv and hr are not loading and showing a zero. Everything was all fine for the last 10 days. This bug started 2 days ago and is quite unfortunate with the pro version. Could you please help?