Issue with temperature sensor connected to GPIO 26

[wailla]

Good morning, according to the documentation pins 29 to 40 are used only not in the case of a single panel and that is why I would like to use it to read a sensor, but it keeps giving me error :

fabio@raspberrypi:~/project/projectPanelLed $ sudo python test3.py 
Traceback (most recent call last):
  File "/home/fabio/project/projectPanelLed/test3.py", line 21, in <module>
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT/common.py", line 81, in read
    return platform.read(sensor, pin)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Adafruit_DHT/Raspberry_Pi_2.py", line 34, in read
    raise RuntimeError('Error accessing GPIO.')
RuntimeError: Error accessing GPIO.

I ask why I can't read sensor if the sensor test code is this.

import time
from rgbmatrix import RGBMatrix, RGBMatrixOptions
import Adafruit_DHT

options = RGBMatrixOptions()
options.rows = 64
options.cols = 64
options.chain_length = 1 # only one panel
options.parallel = 1
options.hardware_mapping = 'regular'
matrix = RGBMatrix(options=options)

DHT_SENSOR = Adafruit_DHT.DHT11
DHT_PIN = 26 # Use an unused pin if there are conflicts

while True:
    humidity, temperature = Adafruit_DHT.read(DHT_SENSOR, DHT_PIN)
    
    if humidity is not None and temperature is not None:
        print(f'Temperature: {temperature:.1f}°C, Humidity: {humidity:.1f}%')
    else:
        print(“Error reading the sensor.”)
    
    time.sleep(2) 

Or the program give me this error

python3 test2.py
Traceback (most recent call last):
  File "/home/fabio/project/projectPanelLed/test2.py", line 59, in <module>
  File "/home/fabio/project/projectPanelLed/test2.py", line 41, in get_sensor_data
RuntimeError: No access to /dev/mem.  Try running as root
whoami
root

PS: the sensor works since with other scripts the required output comes out.