Hi Siva,
- In any SAP system, you can run only one ACR at a time.
- So, may be you have more than one ACR's running simultaneously in the Process Chain.
- I, suggest you to run one at a time if you dont have any look-up's.
You can refer to the below Wiki page about your issue as it has solutions.
Attribute Change Run concepts - SAP NetWeaver Business Warehouse - SCN Wiki
Hope, it helps you.
Regards,
Gokulkumar RD