VS Code - openHAB-Extension: No code completion active

That’s strange. I tried and could not open http://openhabianpi:8080.
That surprised me because I know it worked so far.

That’s why I stopped openhab.service and started it again.

While openhab was starting, I could open http://openhabianpi:8080 and openHAB-Extension was active for a few minutes!

After openhab was fully started (which took at least >30 minutes) I couldn’t open http://openhabianpi:8080 anymore and openHAB-Extension wasn’t active anymore.

I tried that again and realized, that when openhab.service is stopped and I type in rule + <ctrl><space> a error appears.
grafik

But when I close that error (click on x) the code completion appears.

And when I start openhab.service again, http://openhabianpi:8080 and openHAB-Extension are not working anymore. Once while starting I got this error:
grafik

BTW: Always when VS Code is running, my openhab rules are executed very, very slow. This is a known issue/bug. To me, it looks like my problem could be related to this.

Edit: At the moment, openhab.service is running and I can open http://openhabianpi:8080. But openHAB-Extension is still not working. Strange!