redirect from a malvare?

Almost certainly this problem can not be viewed by anyone, I have no problem if I use another pc, so I describe it again.
This problem, which I had to “start, led me to delete everything, site, Wp, and Mystique, and I redid everything with a new address.
Now, when I type “cobasscuolasardegna.com” I am directed, in other PCs, the new and everything works, I can enter a name and password and enter into the administrator panel.
In my pc, where I installed Wp and Mystique, it redirects me to the “old address”, as I report below. does not recognize enter the name and password and can not log-in as administrator

addressing old:

https://www.cobasscuolasardegna.com/~cobasscu/wp-login.php?redirect_to=https%3A%2F%2Fwww.cobasscuolasardegna.com%2F~cobasscu%2Fwp-admin%2F&reauth=1

addressing new:

http://www.cobasscuolasardegna.com/wp-login.php?redirect_to=http%3A%2F%2Fwww.cobasscuolasardegna.com%2Fwp-admin%2F&reauth=1
sorry for my english