Hello,
Please read this article – https://xstore.helpscoutdocs.com/article/89-product-images
Provide temporary wp-admin access, so we can taka a closer look at your settings.
Create an account via Dashboard (Users > Add new) with administrator role http://prntscr.com/s3rc9m > provide us with username and password via the Private Content area http://prntscr.com/s5mao7 You can use any email for it.
Regards