Error: Spinnaker: Failed waiting for EventData on NEW_BUFFER_DATA event. [-1011] Error: Spinnaker: Can't de-initialize camera. Camera is still streaming. [-1004] Camera 0 example complete...

[Tfyourhelp]

i tried to terminate camera but got this error . Can somebody help me reason why this error occurs:

File "d:\t∙m lum\python\cRafft\craftcrnnngui5\camera\configgg.py", line 337, in deinit_camera
system.ReleaseInstance()
File "C:\Users\DELL\anaconda3\envs\pii37\lib\site-packages\PySpin\PySpin.py", line 35807, in ReleaseInstance
return _PySpin._SWIG_SysPtr_ReleaseInstance(self)
_PySpin.SpinnakerException: Spinnaker: Can't clear a camera because something still holds a reference to the camera [-1004]