Parked Document Workflow - Error in 2nd Release

[HCMI FLORENDO, Loila V.]

Hello everyone!
 
I've configured Workflor for Releasing and Posting Parked Documents. For
the single-level amount release, it's working fine. But for the
two-level amount release, I get this error on the second release.=20
 
        "Work item could not be accepted (->function canceled)
         Message no. WO 529"
 
Am I missing something?
 
Thank you all in advance.
 
Best regards,
Loila