Sorry for the later reply.
Some of the staff were on holidays. Do you have the latest version installed? Do you have the minimal requirements for this theme to be imported correctly? Please see theme requirements here: https://codeless.co/june/documentation/#requirements
Ask you host provider regarding them if you do to have enough information.
Please add some wp and ftp credentials in your profile data. Read this article for more information. We’ll be happy to check this up for you.
What demo do you want to use?
