------------------- TauDEM command: -------------------
C:\SWAT\SWATPlus\TauDEM539Bin\pitremove -z E:/gis/AAS2203 - WB CAM NbS for water supply/Hydrology/Takab/SWAT/Takab_Project\Watershed\Rasters\DEM\DEM_takab_riverutm.tif -fel E:/gis/AAS2203 - WB CAM NbS for water supply/Hydrology/Takab/SWAT/Takab_Project\Watershed\Rasters\DEM\DEM_takab_riverutmfel.tif

'C:\SWAT\SWATPlus\TauDEM539Bin\pitremove' is not recognized as an internal or external command,
operable program or batch file.
*** Problem with TauDEM C:\SWAT\SWATPlus\TauDEM539Bin\pitremove -z E:/gis/AAS2203 - WB CAM NbS for water supply/Hydrology/Takab/SWAT/Takab_Project\Watershed\Rasters\DEM\DEM_takab_riverutm.tif -fel E:/gis/AAS2203 - WB CAM NbS for water supply/Hydrology/Takab/SWAT/Takab_Project\Watershed\Rasters\DEM\DEM_takab_riverutmfel.tif: please examine output above. ***

Please try