Issue with sending email with contact form

I do need some help with the Pepipost plugin, it seems like it’s controlling the contact form on my contact page.

2 Scenarios

1. Sending an email from the contact form works when the Pepipost plugin is deactivated,

I get the name, subject, message, and the email address.

2. when sending an email from contact form while the plugin is activated works as well, however,

there is no information about the sender’s email address. I see the name, the subject, and the message, but not the email address where the message is coming from.

Can you please help?

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