toc links scroll doesnt work

Hello!

Suddenly my toc widget doesnt scroll down to the heading clicked

https://sofianos-orthopedika.gr/%CE%BF%CE%BE%CF%85%CE%B3%CF%8C%CE%BD%CE%BF-%CF%83%CF%84%CE%BF-%CF%83%CF%80%CE%AF%CF%84%CE%B9-%CE%B1%CE%BD%CE%B1%CE%BB%CF%85%CF%84%CE%B9%CE%BA%CF%8C%CF%82-%CE%BF%CE%B4%CE%B7%CE%B3%CF%8C%CF%82-2020/

I have tried disabling wp-rocket,perfmatters etc with no luck!

Can you please have a look at this and maybe point me to a solution as to why this is happening?

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