Switched off phone and docking station topic

Hello,

when I switch off my phone and stick it on my charing station (Docking) my phone goes on to shop the battery is charging. All good. But than it switches off and on again over and over and over again.

And I am not quit sure if this is a docking station problem too: When I switch daydream on the phone do not charge at all... is this releated and I got a broken docking station?

Edit: When I switch on the phone and put it on docking station, it charges normally....