Page Redirect Hidden in Script

I was recently updating my portfolio site, http://www.amylynnehayes.com, and for some reason am getting a redirect when I share the link or try to open it in a different browser.

I have spent hours on the phone with my hosting support, and they were able to determine that there is a redirect somewhere in the code, but they weren’t able to find where. The redirect goes to a 404 page, and happens even when multiple different themes are activated. If the plugins are all disabled, the redirect stops, but then the site doesn’t appear correctly.

They suggested finding a developer who can take a closer look, so I am looking for recommendations.

Can anyone point me in the right direction to find help?

Thanks!