Widget not working anymore

Hi there,
I guess since the new wordpress version something happened and my widgets are not working anymore. It asked me to transfer them to blocks and now that I have done that, the social media links just disapperead and I cant even seem to add them back in within the Widget section of my wordpress.

Any tricks to get it working on the new wordpress?

Thanks
Chris

The page I need help with: [log in to see the link]