arborWOOBC_fCNAOBC is not created - Error_code 1

This seems to be an internal error. Kindly confirm if it is related to the validation of the subscriber no or to another route cause.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ser="http://server.api.nep.mobinets.com/">
<soapenv:Header/>
<soapenv:Body>
<NS3:arborWOOBC_fCNAOBC xmlns:NS3="http://server.api.nep.mobinets.com/">
<fAppType>I</fAppType>
<fOLT>AZA1</fOLT>
<fFDHMDU>OOOO</fFDHMDU>
<fOBCTag>40QFM1448709571//OT837401</fOBCTag>
<fSubno>44449094</fSubno>
<fWOID>4444900294</fWOID>
<fUsage_Type>BG</fUsage_Type>
<fOrder_Type>INST</fOrder_Type>
<fNoOfSTBs>0</fNoOfSTBs>
<fUserID>10252437</fUserID>
<arborOrderId>444490094</arborOrderId>
</NS3:arborWOOBC_fCNAOBC>
</soapenv:Body>
</soapenv:Envelope>

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<wsse:Security soap:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<wsse:UsernameToken wsu:Id="UsernameToken-bf0df50b-8e6b-44a5-a587-965ea53e48b2">
<wsse:Username>nep-api-key</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">mobinets@2017</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>
</SOAP-ENV:Header>
<soap:Body>
<ns2:arborWOOBC_fCNAOBCResponse xmlns:ns2="http://server.api.nep.mobinets.com/">
<return>1</return>
</ns2:arborWOOBC_fCNAOBCResponse>
</soap:Body>
</soap:Envelope>