Client having issues on mobile, I'm not

My client is having issues with our website mobile, but I’m not seeing the issues come up even when I try looking on different devices (three different phones and resizing browser on my computer). Here’s what it looks like on my screen:

and here’s what my client is seeing:

Any tips for a new Webflow user?
Thanks in advance.

Here is my site Read-Only: Webflow - Southern Illinois Solar