Stuck in fastboot mode after a so called successful install

[Stemy]

Hello,

I'm a bit angry because despite the installer saying the install is successful, it seems to have, in contrary, bricked my phone (a FP3).
Actually, it seems more a "schrödinger's success", because the installer says the install is a success, but the dialog windows says there's an error

Error: unhandled rejection at [object Promise]: Error: Failed to create run: FetchError: request to https://ubports.open-cuts.org/graphql failed, reason: Hostname/IP does not match certificate's altnames: Host: ubports.open-cuts.org. is not in the cert's altnames: DNS:*.cloudwaysapps.com, DNS:cloudwaysapps.com

Now it's unable to do anything but (re)start in fastboot mode whatever i'm asking, including power off.

If i relaunch the installer, it says "partition table does not exist".

So what am i supposed to do now ?

[Lakotaubp]

@Stemy Which version of UT where you trying to install and what OS was on the phone before you started. This info will help solve your issue.

[davidd]

@Stemy
I had the same issue. I rescued by bricked phone by installing android 10 (accroding to https://support.fairphone.com/hc/en-us/articles/18896094650513-Install-Fairphone-OS-manually#01HB8ZZ1BMMQNSNMFT3YXDBXA0) and afterwards I installed ubuntu touch via the UBports Snap again.

The error still appeared after the installation but now my phone boots without any issue.