Instant timeout exception

[nompaixg06]

Hello, when trying to run sms_handler.py i get a timeout exception almost instantely. I would appreciate some help

INFO: Connecting to modem on port COM5 at 19200bps
Initializing modem...
DEBUG: write: ATZ
Traceback (most recent call last):
File "C:\Users\nompa\Desktop\DEVELOPMENT\PYTHON\PDCAFDLSK\sms.py", line 37, in
main()
File "C:\Users\nompa\Desktop\DEVELOPMENT\PYTHON\PDCAFDLSK\sms.py", line 29, in main
modem.connect()
File "C:\Users\nompa\Desktop\DEVELOPMENT\PYTHON\PDCAFDLSK\venv\lib\site-packages\gsmmodem\modem.py", line 210, in connect
self.write('ATZ') # reset configuration
File "C:\Users\nompa\Desktop\DEVELOPMENT\PYTHON\PDCAFDLSK\venv\lib\site-packages\gsmmodem\modem.py", line 458, in write
responseLines = super(GsmModem, self).write(data + writeTerm, waitForResponse=waitForResponse, timeout=timeout, expectedResponseTermSeq=expectedResponseTermSeq)
File "C:\Users\nompa\Desktop\DEVELOPMENT\PYTHON\PDCAFDLSK\venv\lib\site-packages\gsmmodem\serial_comms.py", line 144, in write
raise TimeoutException()
gsmmodem.exceptions.TimeoutException: None

thank you in advance for your help