Error while running BDC session in Background...plz help urgent

Hi,

I am running BDC session i n Background for MIR4 tcode which was written in ECC 5.0 ,but I am running in ECC 6.0 and I encountered the followin error....

plz help me out in solving the below issue...

I got the output all below

CALL_TRANSACTION MIR4 returncode: 1.001 RECORD: 0

I Document 2007 is being reversed

S Control Framework: Fatal error - GUI cannot be reached

A Runtime error RAISE_EXCEPTION has occurred