Hi, @d79. Thank you for your help. Unfortunately, that doesn’t do the fix for me, and I’m not sure if I could ask my visitors to be logged in to see the FB stream.
Thank you, too, @cameronjonesweb. I don’t have ad-blockers, nor conflicting browser extensions at all installed on my browser and the console log looks perfectly normal. If you are positive about that, I’ll try to play around with caching settings (maybe the WordPress heartbeat? My host recently took over control of WordPress’ core heartbeat) or anything I can think of on my end. Also, I’ll take a look to this support forum to see if someone comes up with a working solution for me.
Have a nice week everybody!