PermissionError: [Errno 13] Permission denied: 'IPSW/Firmware/aopfw.im4p'

[riotard]

log:

Current version is: 1.0.1
If you are using a 64 Bit device then connect it in DFU Mode
If you are using a 32 Bit device then just have it connected in NORMAL mode
Traceback (most recent call last):
File "/Users/rio/Downloads/Vieux-master/./vieux", line 88, in
ipsw.removeFiles()
File "/Users/rio/Downloads/Vieux-master/ipsw.py", line 41, in removeFiles
shutil.rmtree("IPSW")
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/shutil.py", line 740, in rmtree
return _rmtree_unsafe(path, onerror)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/shutil.py", line 613, in _rmtree_unsafe
_rmtree_unsafe(fullname, onerror)
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/shutil.py", line 618, in _rmtree_unsafe
onerror(os.unlink, fullname, sys.exc_info())
File "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/shutil.py", line 616, in _rmtree_unsafe
os.unlink(fullname)
PermissionError: [Errno 13] Permission denied: 'IPSW/Firmware/aopfw.im4p'

i've already tried rebooting, libusb is installed & have tried reinstalling, and im using sudo.