@AppLee @domubpkm @TotalSonic Looks like I got an answer from their support, their servers are in maintenance, but should be done for tuesday, and still this error in ubports installer.

@Keneda good idea, it's worked for me too.

For windows version of ubports path is like that :

C:\Users\User\AppData\Roaming\ubports\yggdrasil

Thanks for your answers

Hi all,

I try to install VollaOS or SailfishOS from a UbuntuTouch on a Volla Phone with UBports installer (v0.8.9), and I get a certificate error when it try to download ressources.

Error: core:download: Error: core:download Error: Error: Download Error: https://ota.volla.tech/volla-9.0-20201019-nightly-k63v2_64_bsp-signed.zip Error: certificate has expired

My internet connection is fine and I don't have any proxy.

Am I missing something?