AttributeError: 'Camera_Caps_Controller' object has no attribute 'crop_gst_filters'

[Liampour]

Hello,
Congratulations for your work. I have connected 2 CSI cameras to jetson nano. When I try to run python3 camera_caps.py the the following error appears:

Traceback (most recent call last):
  File "/home/jet/camera-caps/camera_caps_controller.py", line 352, in on_camera_box_changed
    preview_command = self.preview_command()
  File "/home/jet/camera-caps/camera_caps_controller.py", line 721, in preview_command
    crop_gst_filters = self.crop_gst_filters
AttributeError: 'Camera_Caps_Controller' object has no attribute 'crop_gst_filters'

Also from the camera menu I cant select any of the available choices.
The GUI that appears is the following.

Jetpack version 6.1

Any suggestions?