can't add integration of opensprinker

[nnachsho]

Hi, I'm running OSPi (2.1.8(1)) frimware.
I had the integration running in the past.
after a crash of my HA, i reinstall it, when I type in the "http://:port>, password and MAC of the connection interface on the PI in the format with/with out ":" delimniter.
I get an error"[%key:common::config_flow::error::unknown%]"
Any way I can re-run it?