«Post to an Author's Facebook Timeline whenever they publish a new WordPress Post or Page.
Mention friends and Facebook Pages. This posts to their Timelines as well as lists them on the WordPress Post or Page.»
Followed your detailed instructions after plugin install.
Below are pictures of all "error" phases:
Although it says it was published nothing appears neither in Friend's wall nor in Author's wall.
Also, I think it should have an option so the author could publish on FB if it was not yet published.
Thanks in advance.