Links Not Working On Domain Site (But They Work On IP Address)?

Hello! What would I do if the links (specifically the portfolio section) don’t work on my website? For some reason they work when I type in the IP address (https://50.87.248.156/~ennifer6/) but not my actual domain, which is https://www.jenniferbuyco.com?

The links on the portfolio section are supposed to open up to reveal more pictures of that specific work. They only do that on the IP address site, not my domain.

How can I resolve this? Would I need to change something in the settings to make this work?

Thanks!