Javascript and API fails to fetch [closed]

I have a problem with my script made in javascript. I use to show on my website a football predictions taken from an API Service (RapidAPI). The script works well but it often happens that when it fails to fetch a single prediction (the console tells me error 500) practically everything freezes and does not show me any result on my website. I can't paste the entire code here but you can find all the code on www.mondobet.it

Hope you can help me. Thanks a lot.