WPForms Notifications settings ignoring input, sending to wrong address

I recently helped a client set up her website, and we’re having trouble with the contact form, which was created via WPForms.

When someone tries to send her an email, either:

1. They get an error, saying the email couldn’t be sent.

2. Or their email sends, but it goes to MY address, even though I specifically put HER email address in the “Send To Email Address” field in the Notifications tab in WPForms’ settings.

The client and I are both admins in the site. Her admin account was created after mine.

I have not yet set up WP Mail SMTP, as I’m trying to get her to create a branded email before I do that. (She currently has a gmail address.)

The WPForms’ Notifications page is also ignoring all the other instructions I give it. Here’s what I wrote in each field, vs. what actually happens when someone uses the form to send a message:

Send To Email Address:
What I wrote: My client’s address
What it sends to: My address

Email Subject Line:
What I wrote: “New Message via InnerViewSolutions contact form”
What it says in the emails I receive: “New Entry: Simple Contact Form”

From Name:
What I wrote: “New Message from Contact Page”
What it says in the emails I receive: “Flute Artist” (The name of our website’s theme.)

From Email:
What I wrote: {admin_email}
What it shows in the emails I receive: My email
(I tried putting her email in this field, to no effect.)

If anyone knows how to get WPForms to acknowledge the instructions I give it in the settings, and how to stop people from getting an “email can’t be sent” error when they try to fill out the contact form, I’d appreciate it. Thanks in advance.

The page I need help with: [log in to see the link]