SOAP Lookup error

Hi Experts,

I am getting a strange error which I have never seen before during SOAP Look up using lookup api, all of a sudden.

Exception during processing the payload. Error when calling an adapter by using the communication channel CC_YYYYYYYYYYY(Party: , Service: XXXXXXXXXXXXXXXXXX, Object ID: a845cb5ffd083284acaf9c356fc0e4fd) while trying to invoke the method java.lang.Object.getClass() of an object loaded from local variable 'obj'

Let me know if you have seen it before and have a resolution

Thanks,

Akhil