Netplan issues with Hetzner and ip's

I have the following config on 01-netplan.conf think it's called.

network:  version: 2  renderer: networkd  ethernets:    eno1:      dhcp4: no  bridges:    br0:      interfaces: [eno1]      addresses:        - IP/32      routes:        - on-link: true          to: 0.0.0.0/0          via: Gateway      nameservers:        addresses:          - 1.1.1.1          - 1.0.0.1

It's via over at Hetzner.

But when i wrote netplan apply it lost connection. How would i go about diagnosing this?