@Neonkoala: I've sent you the log, but I'll also post it here.
2021-11-25 20:30:48.300 Bootlace[560:613] -[commonFunctions getPlatform] [Line 120] Platform: iPod1,1
2021-11-25 20:30:48.324 Bootlace[560:613] -[commonFunctions getSystemVersion] [Line 146] iOS Version: 3.1.3
2021-11-25 20:30:48.334 Bootlace[560:613] -[BootlaceAppDelegate applicationDidFinishLaunching:] [Line 58] Configuration
2021-11-25 20:30:48.339 Bootlace[560:613] -[BootlaceAppDelegate applicationDidFinishLaunching:] [Line 59] ==========================================
2021-11-25 20:30:48.345 Bootlace[560:613] -[BootlaceAppDelegate applicationDidFinishLaunching:] [Line 60] console logfile = /var/tmp/Bootlace.log
2021-11-25 20:30:48.350 Bootlace[560:613] -[BootlaceAppDelegate applicationDidFinishLaunching:] [Line 61] ==========================================
2021-11-25 20:30:48.459 Bootlace[560:4403] -[OpeniBootClass opibPatchKernelCache] [Line 878] Checking device compatibility...
2021-11-25 20:30:48.970 Bootlace[560:4403] -[OpeniBootClass opibKernelMD5:] [Line 861] Kernel MD5: da5348fe0ac42534538980536bf4f30b
2021-11-25 20:30:48.982 Bootlace[560:4403] -[OpeniBootClass opibPatchKernelCache] [Line 919] No MD5 matches found, aborting...
2021-11-25 20:30:49.436 Bootlace[560:613] -[FirstLaunchViewController updateGUI:] [Line 71] Error triggered. Fail code: -3
It's a MD5 unmatch. So, how can I fix this?