cant get it to work it says permission denied

[bugrick-dev]

~/netattack $ python3 netattack.py -scan -mon
CRITICAL: Can't open /proc/net/dev !
CRITICAL: Can't open /proc/net/route !
CRITICAL: Can't open /proc/net/dev !
* * * * * * * * * * * * * * * * * *
* N E T A T T A C K  by chrizator *
* * * * * * * * * * * * * * * * * *
Traceback (most recent call last):
  File "/data/data/com.termux/files/home/netattack/netattack.py", line 341, in <module>
    iface = monitor_on()
            ^^^^^^^^^^^^
  File "/data/data/com.termux/files/home/netattack/netattack.py", line 305, in monitor_on
    ifaces = os.listdir('/sys/class/net/')
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/sys/class/net/'

it has all the permissions but not working