Erro Registro DOI

Alguém poderia me ajudar com os registros do DOI na CrossRef?? Estou recebendo a mensagem de erro abaixo:

<?xml version="1.0" encoding="UTF-8"?>

<doi_batch_diagnostic status=“completed” sp=“ds4.crossref.org”>
<submission_id>1390594376</submission_id>
<batch_id>578bdfc4-b38c-4be0-bb87-2283c2ddc078</batch_id>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2
Successfully updated in handle
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.40
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.41
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.42
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.43
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.44
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.45
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.47
Successfully added
</record_diagnostic>
<record_diagnostic status=“Failure” msg_id=“4”>
10.18759/rdgf.v0i2
Record not processed because submitted version: 1456767015 is less or equal to previously submitted version (DOI match)
</record_diagnostic>
<record_diagnostic status=“Success”>
10.18759/rdgf.v0i2.48
Successfully added
</record_diagnostic>
<batch_data>
<record_count>16</record_count>
<success_count>9</success_count>
<warning_count>0</warning_count>
<failure_count>7</failure_count>
</batch_data>
</doi_batch_diagnostic>

oi Ana, verifique a página de ajuda da CrossRef, ela indica a causa de cada um dos tipos de erros

http://help.crossref.org/suberrors

parece que seu arquivo esta com o timestamp desatualizado

Ok Ronnie!
Muito obrigada pela dica!!