Your are not permitted to view Doctype

HI everyone, I was working on a Doctype and I was trying something with it.

As soon as I had changed it to is Child Table ( to try something ) , i cannot view/access my doctype.

Now in the Doctype settings it is not a Child Table anymore.

I cannot create a duplicate Doctype because i cannot view the new duplicated doctype aswell.

I am logged in from administrator account with access to EVERYTHING. So this is certainly not the access issue.

Can anybody guide me how I can fix this?

Kind regards,

Waqas Tariq