Issue cloning subsite

Hi there,
I am trying to get my site to clone from deepergreenconsulting.com to a subsite, https://deeperconstruction.deepergreenconsulting.com, but it isn't working. The process appears to work, and then sends you to the dashboard, but the site just is a white screen of death. Nothing works and the subsite isn't working either. Can you help me get this working? I also troubleshooted it with a support agent but got disconnected. I have granted support access.