>> Redirect after restauration

I format my server, after create domain save with plesk (under cent OS 7)

I restaure domain but 2 multisite loops and get for the two domains this :

domain.com//wp-signup.php?new=domain.com

All data are there but always loop to this and I dont know why !

Have you got an idea why it redirect all the time ?

your help will be very appreciated

Thank you