Number animation does not work properly. Everything is well set up. But it only works sometimes. 50% of cases the animation doesn't start and the numbers stay at 0. I'll reset it and sometimes they start and sometimes they don't.
Interestingly, just run the webtools (F12) and the animation will start immediately. Or vice versa. If it is open, just close it.
Live demonstration at https://renerga-j4.richta.eu
The site runs on j4
https://youtu.be/9A1PoZrghKI
The video shows how the animation starts when I open devtools (F12) or when I reload the page.