Error when running a Query - RSRT

Hello Experts,

We have this Issue when we Run the query in RSRT and Bex as well.

We have the Multiprovider - on which we have 3 real time infocubes and One standard Cube.

Please let us know what could cause this error message.

When executed we have Debugging mode on and then the error message displayed.

ESQL Error: 0        DBMAN               2570

ESQL Error: INTERNAL_ERROR       DBMAN               257INTERNAL_ER

EErrors occurred during parallel processing of query 3, RC: 3    DBMAN    4213

EError while reading data; navigation is possible  BRAIN     289

I>> Row: 54 Inc: WRITE_MESSAGES Prog: CL_RSDR_AT_QUERY       RS_EXCEPTION        301CL_RSDR_AT_QUERY.

Please provide us any clue which area can we Investigate.

Thanks,

Santhosh