I installed K2 Plugin - OpenGraph Integration.
And it's working ALMOST.
Comments are working, but on facebook "like" it gives error. And it does not show how many likes..

The site are www.chippenhamnorway.no

Infact I get error even when I try without Open Graph Intergration... With the built in, ang like plugin.. But on articles (jommla) facebook like works well

I get this error:
The app ID "254275457933248" specified within the "fb:app_id" meta tag was invalid.

This is not my app ID. I have uninstalled every other fb extension...

Still get the error... Hope someone can help