I had built a module for tracking purpose. it successfully calibrate camera. But when I set the marker setting for the probe tracking, suddenly slicer stops and shuts down with the following error as shown in the image.
Your module probably has a bug that makes Slicer crash. If you included logging statements in your code then looking at the log could help (About / Report a problem), but the proper course of action would be debugging: https://www.slicer.org/wiki/Documentation/Nightly/Developers/Tutorials/Debugging
Can you suggest me a “videotracking” module for slicer?
What do you mean by “videotracking”? Position tracking of 2D barcodes is available through Plus toolkit.
Webcam based tracking of phantom for augmented reality application
Plus toolkit can do such tracking - see OpticalMarkerTracker device documentation for details.