Signal K connection can not locate bindings file, fresh install!

[RickardT]

I have fresh installed 64bit openplotter on a rpi4  according to the installation instruktion. 
It however seems that this image needs update with influxdb and grafana certificate verification.

"Err:7 https://packages.grafana.com/oss/deb stable Release                     
  Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate.  Could not handshake: Error in the certificate verification. [IP: 151.101.86.217 443]"

I found some guidance on the net to install the latest Grafana and influxdb, but first by installing chrono since the NTP did not work.

Added a usb GPS but got stuck at: 

Error in "Connection & Plugin Status"
Could not locate the bindings file. Tried: → /usr/lib/node_modules/signalk-serv...

I have tried this with two reinstallations, and also stuck at the same point on a upgrade of an earlier openplotter installation.

I have Temporarily got the usb GPS to work but "some, forgot which" upgrade made i fail with the binding to the file error above.
Tried to reinstall  Signal K,  in different ways, several times.

Any guidance?