But now I do see this small XenForo-logo which is originating from the default XF-image named "logo.og.png".
I have now uploaded my custom image also named "logo.og.png" via FTP to my server into the folder /styles/default/xenforo , but it is still showing the defult XenForo-logo instead of my custom logo.
When I go to my website into "Members / Recent Activity", then at the Sidebar at "Facebook-Recommendations", it still shows the default XenForo logo.og.png image
What am I doing wrong ????