Keypad doesn't work

Hi there,

we are 4 people at home…
we registered 8 fingerprints for the keypad…
but the keypad only works in 20% of the cases we want to open the door…

the LEDs are blinking from right to left for theree times, than double blinking two times, than nothing happens…

where and how i should start with troubleshooting?

regards
Daniel

EDIT: we use Nuki Smart Lock 3.0 Pro + Keypad 2.0

het is soms wat gevoelig ook met regen heb ik gemerkt… je moet redelijk precies je duim erop houden vingerafdruk lezen soms beetje bewegen