(Resolved) Restore V12 from V10 backups

In the fresh server I saw that frappe version and erpnext version aren’t the same.

image
then I run
sudo bench switch-to-branch version-12 --upgrade

and got both in version-12

I run this
bench reload-doc Core Doctype milestone_tracker
but I got this message

/apps/frappe/frappe/core/doctype/milestone_tracker/milestone_tracker.json missing

I dunno what else to do.
Any one with a suggestion?