Why do I get the word "Disarmed" on the subject line

When people submit a completed form I get an e-mail form them with their answers for each of my questions in the form I designed.

But on the e-mail's Subject line, it begins with {Disarmed}.

I am used to it now, but I wonder why it is there.

It was probably a unique name from an old field. It seems like you have already removed it from the subject line of the email notifications for this form: https://form.jotform.com/91175787605265 

Let us know if you have more questions.