Time and Date problem (also tempsensor)

I have copied the time and date item from the demo, but it just shows --.-- in my sitemap. I have tried different ntp servers in the config file, but i get no date or time att all. What’s wrong?

I have now recognized that i don’t get any value from my tempsensor that is connected to my Tellstick. I have the sensor number and value in my debug file, so the tellstick seems to work fine.
Can this be a permisson issue? Because i don’t get either time or temperature in Openhab. I am running OpenHab on Raspberry pi with raspian.