I have a problem with the Facebook button on the bottom of my posts, when I or someone else clicks on it in order to like the post, it says there is an error and the following message comes up:
'''' is an invalid value for property 'object' with type 'Reference'
I don't know how to make it work again because I have not encountered this problem before, can you help me?
Nathalie de Groot
The blog I need help with is writingnapoleonichistory.wordpress.com.