cannot initialize camera

[NadineKGut]

problem description
"initilizing camera" leads to a tiny window opening saying "setting up camera, please wait..." but nothing happens

Operating System
Windows 11

Camera_control version
camera36

Relevant log output
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\TDT\anaconda3\Lib\tkinter_init_.py", line 1948, in call
return self.func(*args)
^^^^^^^^^^^^^^^^
File "C:\Users\TDT\Camera_Control\camera_control_GUI.py", line 381, in
Button(self.window, text="Initialize Camera 1", command=lambda:self.init_cam(0)).grid(sticky="nsew", row=cur_row+1, column=0, columnspan=2)
^^^^^^^^^^^^^^^^
File "C:\Users\TDT\Camera_Control\camera_control_GUI.py", line 75, in init_cam
self.cam.append(ICCam(cam_num))
^^^^^^^^^^^^^^
File "C:\Users\TDT\Camera_Control\ic_camera.py", line 40, in init
self.cam.open(self.cam.GetDevices()[cam_num].decode())
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
IndexError: list index out of range

Anything else?
I am using a Basler camera aca1920. Drivers are installed, I can see an image when opening camera with Pylon Viewer.

Any advice would be very much appreciated.
Nadine