palera1n: Ramdisk Branch - Failed to read shsh

Mac OS 12.5.1 iPhone 8 Global iOS 15.6

I know your ramdisk branch and support for iOS 15 outside of the CT bug is still new and unstable but I wanted to give it a shot on my device and providing a log in case it helps.

Command ran, ./palera1n.sh --debug

[IOKit] Waiting for the USB handle with VID: 0x5AC, PID: 0x1227
CPID:8015 CPRV:11 CPFM:03 SCEP:01 BDID:02 ECID:001129EE08D3A02E IBFL:3C SRTG:[iBoot-3332.0.0.1.23]
Found the USB handle.
Stage: SETUP
ret: true
[IOKit] Waiting for the USB handle with VID: 0x5AC, PID: 0x1227
CPID:8015 CPRV:11 CPFM:03 SCEP:01 BDID:02 ECID:001129EE08D3A02E IBFL:3C SRTG:[iBoot-3332.0.0.1.23]
Found the USB handle.
Stage: PATCH
ret: true
[IOKit] Waiting for the USB handle with VID: 0x5AC, PID: 0x1227
CPID:8015 CPRV:11 CPFM:03 SCEP:01 BDID:02 ECID:001129EE08D3A02E IBFL:3C SRTG:[iBoot-3332.0.0.1.23] PWND:[gaster]
Found the USB handle.
Now you can boot untrusted images.
[*] Downloading BuildManifest
Version: 9bfdde2b2456181045f74631683fba491d8bf4f2 - 38
libfragmentzip version: 0.64-aaf6fae83a0aa6f7aae1c94721857076d04a14e8-RELEASE
init pzb: https://updates.cdn-apple.com/2022SummerFCS/fullrestores/012-41763/0BC321DF-1A4E-473B-9EE0-BF126CB1CDA8/iPhone_4.7_P3_15.6_19G71_Restore.ipsw
init done
getting: BuildManifest.plist
  0% [
100% [==========================================================================
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100% [===================================================================================================>]
download succeeded
img4tool version: 0.197-aca6cf005c94caf135023263cbb5c61a0081804f
Compiled with plist: YES
img4tool: failed with exception:
[exception]:
what=Failed to read shshFile
code=19529736
line=298
file=main.cpp
commit count=197:
commit sha  =aca6cf005c94caf135023263cbb5c61a0081804f:
[-] An error occurred

It is attempting to read an shsh file, do we need to specify this file? I saw a different open issue where they specified the shsh file but neither of the branch’s readme’s specifies this. Is this an unintended error or an error due to being in the early stages?