When adding Record form does not load completely

I have created a copy of the CRM namespace (via export/ import namespace)
Went to Leads page and clicked on “ADD”…it show a page as attached. Basically a blank page and the form is not loading. Save and Back button show up and a banner on the top saying creating record for module lead.

It probably has something to do with the export/import. I suggest you try to create a new namespace and replicate the things you need from the CRM

Have already tried that copying the same crm namespace with another name to make edits but the moment I press add record the page goes blank. Anyways thanks for responding if no quick fix we can close this as I have started with a new namespace.