error while running annealing in CNS

[Sony]

Dear All,
I am working on a low resolution data (4A) and when I run annealing in
CNS, I get the following error:
*************************************************************************************
NEXTCD: condition evaluated as false
Program version= 1.1 File version= 1.1
Sum of 187 elements = 187.0000
Sum of 187 elements = 187.0000
Warning: there are less than 50 reflections per bin
you may want to increase the size of the test set
Sum of 2004 elements = 2004.0000
Sum of 0 elements = 0.0000
Problems interpolating or extrapolating data.
Input data had the following distribution:
Data point 1 could not be used
Data point 2 could not be used
Data point 3 could not be used
Data point 4 could not be used
Data point 5 could not be used
Data point 6 could be used
Data point 7 could not be used
Data point 8 could be used
%NAYBRS error encountered: Less than two data points for
interpolation/extrapolation
(CNS is in mode: SET ABORT=NORMal END)
*****************************************************
ABORT mode will terminate program execution.
*****************************************************

Could someone help me out?
Thaks & Regards
Sony