Facebook login doesn’t work

hi Staff,

the facebook login in the website https://www.fantabrain.it/ doesn’t seems to work. It gets a white page.

In Chrome > Inspector > Network I can see that the called URL returns a 500 code (see image: https://pasteboard.co/GY09amU.png)

Any suggestions?

Thanks,

Marco

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