Hi, on na article, if i select the like button the like does not appear on my fb page, it only appears if i add a comment to the like, also i can't select a preview picture, only my user avatar is shown.
(i am using the fontaine template, i already fixed the "like window is too small" problem)
here is a link to the page.

link to the article

Thank you!!

You need to use K2's image tab in order for the thumbnail to work properly.
Additionally we are using FB's default button so that is an issue/ feature on FB's side.

Thank you, is there a tutorial for that? i don't know where/how to use the image tab, in the settings i can't find it in k2 parameters/social

Simply upload your image using the Image tab.
Click where is says image and choose the image you want to upload.

Videos on K2 can be found here getk2.org/documentation/k2class2012