Error in Getting Nodes Details using Rest API in OBM/OMi

Hi Friends,

I have an API as below to view nodes using in OMi/OBM which is provided in Microfocus document. 


Error is below:

<error>A error has occured while retrieving view</error>


Please help in troubleshooting/finding a solution for it or please let us know if any changes required in above API to view Nodes.