Facebook Block Does Not Show Preview or Preview on Front Office

[vyvy]

Hi All,

 

I'm creating my store by pretashop now.

As subjected, my facebook block does not show preview on manage office and front page.

I searched out another same topic about this issue, but it was closed.

 

The method to solve this issue in old topic is not worked on me.

Method 1, use http, ----- > i changed web add to http, not worked.

Method 2, use facebook fanpage, -----> mine is already a fanpage.

 

I will be much appreciated if anyone can tell me another method worked for this issue.

 

 

 

Thanks.