iinstall issues for Eventr

Install of Eventr is not working for me. Want one page theme it advertises. Instructions say i need other plugins but Redux Framework gives me 3 warning messages and I do not see how it works. It would be great if instructrions were given with the theme (that I bought) so it will work. I would like to get this theme up and running like yesterday! Thank you.

Tried to send email to link given at bottom of contact page for help and got this message:
Your message did not reach some or all of the intended recipients.

  Subject:	Install Eventr issues
  Sent:	8/12/2018 9:52 AM

The following recipient(s) cannot be reached:

  'travis@envato.com.' on 8/12/2018 9:52 AM
        503 5.5.1 RCPT first. k200-v6sm14378398ywe.1 - gsmtp