Local 5.9.8 ; new site creation failed

Hello …Thanks for your answer.
As suggested, i used my son’s PC which running windows10 to install local 5.9.8
But when I tried to create a new site (“essai2021”) I got the 1rst error pop-up (see “flywheel-error-01.png” )
However the creation process continued …but displaying the orange Warning message , complaining about the missing Hosts entry … (see “flywheel-error-02.png” )
And as expected when I tried to get ADMIN Dashboard, Firefox failed to connect the new site (see “flywheel-error-02.png” )
flywheel-error-01

local-lightning.log (74.7 KB) flywheel-error-01 local-lightning.log (74.7 KB) flywheel-error-01 local-lightning.log (74.7 KB)
I attached the “Hosts file” as well as the “local-lightning.log” .
Thanks for your help !!
Regards