Exception condition "REFERENCE_IS_INITIAL" raised.

Hello all.

If I create any view with a model node, I'm getting this exception while displaying the view.

• The following error text was processed in system CRM : Exception condition "REFERENCE_IS_INITIAL" raised.
• The error occurred on the application server crm71ehp5_CRM_00 and in the work process 3 .
• The termination type was: RABAX_STATE
• The ABAP call stack was:
  Method: DESCRIBE_BY_OBJECT_REF of program CL_ABAP_TYPEDESCR=============CP

Can someone please help how to resolve this?!

Thanks to all!