SAS Data Integration : SAP table extract error

This is the error code :

Line 115: ERROR: RFC_ERROR_SYSTEM_FAILURE Error in module RSQL of the database interface.    NOTE: PROC SQL set option NOEXEC and will continue to check the syntax of statements. `

Error Log :

NOTE: Libref SAPENG was successfully assigned as follows: 
  Engine:        R3 
  Physical Name: PRORELOC
101        %rcSet(&syslibrc);
102        
103        %let etls_recnt = 0;
104        %macro etls_recordCheck;
105           %let etls_recCheckExist = %eval(%sysfunc(exist(SAPEng.CDPOS, DATA)) or
106                 %sysfunc(exist(SAPEng.CDPOS, VIEW)));
107        
108           %if (&etls_recCheckExist) %then
109           %do;
110              proc sql noprint;
111                 select count(*) into :etls_recnt from SAPEng.CDPOS;
112              quit;
113           %end;
114        %mend etls_recordCheck;
115        %etls_recordCheck;
MPRINT(ETLS_RECORDCHECK):   proc sql noprint;
MPRINT(ETLS_RECORDCHECK):   select count(*) into :etls_recnt from SAPEng开发者_如何学JAVA.CDPOS;
ERROR: RFC_ERROR_SYSTEM_FAILURE
Error in module RSQL of the database interface.

Any idea why this happen ? The table i tried to extract is called CDPOS. There is no error on other SAP table

RFC_ERROR_SYSTEM_FAILURE means that the RFC call went wrong, usually producing a short dump (transaction ST22) and/or system log entries (SM21). Check these logs to find out what exactly went wrong.