Is you site hosting in SiteGround? If so, please check this link for a workaround:
If you are hosted elsewhere and the live and staging site do not share the same database, Please install the Better Search Replace plugin then do the following:
search for http://www.storeitcold.com and replace it with https://www.staging4.storeitcold.com and
search for http:\/\/www.storeitcold.com and replace it with https:\/\/www.staging4.storeitcold.com
Replace example.com with the domain name of your site.
Hope this helps.