Problems with PHP version 7.1+

I upgraded the php version on my GoDaddy hosting account from 5.6 to 7.2. After my event page failed to load. Other parts of the website worked fine. I stepped back to php version 7.1 and had the same problem. When I dropped down to php version 7.0 the event calendar reappeared. I tried version 7.1 again and it failed to load. Now I’m at version 7.0 and all is good. Just wanted to share my experience.