"Something is wrong" error on my profile & feed. Videos not visible.

Hello! I am using Desktop version, from Win 7, browser Mozilla Firefox latest version.

Since a few days ago, I enticed that "Something is wrong" error keeps appearing on my profile when I log in or log out.

The videos I have posted on my profile are no longer visible to me, even tough I tried deleting and refreshing some of them. 

I checked other similar profiles with videos and for others it worked just fine. But not for me.

I tried clearing up the cache from the browser, but it was no use either. Please help me out, somehow! I will be waiting.

Photo as proof:

https://ibb.co/Yh6n5Zk

Edit: I just noticed "Something is wrong" error also appears when I scroll down my feeds page.

 Ji-N:

You have way too many stuff in your profile and youtube image is not loading.

Oh, okay then I will try to sort out it differently then. I need to think of another design. Thank you for your reply.  

Edit: after some time I re-arranged my page and problems with viewing got solved. ^^