Import price catalog error ORA-01403 no data found and ORA-06512 at line 55

 HI I am updating the price in Quotation and using the interface to update it, last time it worked ok, but this time when  i run the Import price catalog it has error !

parameter:

quoatation

create or update :Y

create soucring rules: Y

approval: incomplete

global agreement No

INSERT INTO po.po_headers_interface

(interface_header_id,

batch_id,

action,

org_id,

document_type_code,

document_subtype,

PO_HEADER_ID,

document_num,

currency_code,

agent_id,

vendor_id,

vendor_site_code,

vendor_site_id,

effective_date,

expiration_date,

vendor_doc_num)

VALUES

(apps.po_headers_interface_s.NEXTVAL,

1,

'UPDATE',  --  Indicates this is a new document