Should I just go to the job interview tomorrow?

I had a job interview yesterday and was sent home to an email to do my background check. Im still in the process I think because im a bit confused. I called the lady who interviewed me several times for help. I tried calling her again today but she didn’t answer so I left a message. She hasn’t gotten back to me but I dont want to call again and pester her. I got an email just a little bit ago reminding me I have another interview tomorrow at 11:00. I would call to clarify but like I said. I dont want to pester her more. Should I just show up to the interview and see what happens? I dont know if the email was sent by mistake or not.