SPAU issue for Unknow adjustment mode (Question mark)

Hi Experts,

I am performing SPAU activities first time.

We are upgrading system from ECC6.0 EHP6 to ECC 6.0 EHP7. While doing SPAU activities for Question marks (Unknown Adjustment) object Back ground job triggering and it is getting canceled status.

If I check the job log showing dump error details.

Please see the dump issue;

Category               ABAP Programming Error

Runtime Errors         IMPORT_DECOMPRESS_FAILED

Except.                CX_SY_COMPRESSION_ERROR

ABAP Program           CL_FB_PARAMETER_DB============CP

Application Component  BC-DWB-TOO-FUB

Date and Time          04.01.2014 16:20:10

Short Text

     Error when decompressing during IMPORT.

What happened?

     Error in the ABAP Application Program

     The current ABAP program "CL_FB_PARAMETER_DB============CP" had to be

      terminated because it has

     come across a statement that unfortunately cannot be executed.

If any one have any idea , please reply to this ASAP.

Thanks

Sri