PETDICOMExtension

When I loaded PET DICOM, I found this error what is meaning and what should i do?

Traceback (most recent call last):
File “G:\3d slicer\Slicer 5.1.0-2022-07-26\lib\Slicer-5.1\qt-scripted-modules\DICOMLib\DICOMUtils.py”, line 748, in getLoadablesFromFileLists
loadablesByPlugin[plugin] = plugin.examine(fileLists)
File “G:/3d slicer/Slicer 5.1.0-2022-07-26/NA-MIC/Extensions-31096/PETDICOMExtension/lib/Slicer-5.1/qt-scripted-modules/DICOMPETSUVPlugin.py”, line 127, in examine
rwvmFile = self.generateRWVMforFileList(fileList)
File “G:/3d slicer/Slicer 5.1.0-2022-07-26/NA-MIC/Extensions-31096/PETDICOMExtension/lib/Slicer-5.1/qt-scripted-modules/DICOMPETSUVPlugin.py”, line 169, in generateRWVMforFileList
raise RuntimeError(“SUVFactorCalculator CLI did not complete cleanly”)
RuntimeError: SUVFactorCalculator CLI did not complete cleanly
DICOM Plugin failed: SUVFactorCalculator CLI did not complete cleanly