can't downgrade my iphone 5s

[amanito125]

Describe the bug
i get "failed to restore device"

What is your macOS version?
macOS 11.6.5 (hackintosh)

What is the device you're trying to downgrade?
iPhone 5s

What is the LeetDown version you're using?
2.2

**Enable debugging in LeetDown's settings and copy and paste LDLog.txt here. **
[+] Waiting for a device in DFU Mode
[+] iPhone 5s (Global) is supported

============= DEVICE INFO =============

Model Name: iPhone 5s (Global)
Hardware Model: n53ap
ECID: 2701739413524
Serial Tag: iBoot-1704.10
APNonce:f5cce05e81a9be2ef66ec287f692ffdf20b13860
CPID: 8960
Destination Firmware: 10.3.3
Pwned: No

=====================================
[+] Verifying iPSW
[+] Checking md5 of the iPSW...
[+] Successfully verified the iPSW
[+] iPSW selected at /Users/stanislav/Downloads/iPhone_4.0_64bit_10.3.3_14G60_Restore.ipsw and being extracted to /var/folders/ld/yr3r2vt95l7_nj3xg_1rz6v40000gn/T/iPSW
[+] Extracting the iPSW please wait...
[+] Successfully extracted the iPSW
[+] Exploiting device...
[+] Exploit succeeded!
[+] Fetching OTA blob
[+] Failed to save 10.3.3 OTA blob. Is it being signed?
[+] Sending /dev/null
[+] Successfully booted /dev/null
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] Sending /var/folders/ld/yr3r2vt95l7_nj3xg_1rz6v40000gn/T/iPSW/Firmware/DFU/iBSS.iphone6.RELEASE.im4p
[+] Successfully booted /var/folders/ld/yr3r2vt95l7_nj3xg_1rz6v40000gn/T/iPSW/Firmware/DFU/iBSS.iphone6.RELEASE.im4p
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] Sending /var/folders/ld/yr3r2vt95l7_nj3xg_1rz6v40000gn/T/iPSW/Firmware/DFU/iBEC.iphone6.RELEASE.im4p
[+] Successfully booted /var/folders/ld/yr3r2vt95l7_nj3xg_1rz6v40000gn/T/iPSW/Firmware/DFU/iBEC.iphone6.RELEASE.im4p
[+] 5 second cooldown, re-plug now if needed on Apple Silicon
[+] Starting restore process
[+] Failed to restore device

Additional info (optional)
i dont know where is LDLog.txt