Hi,
<event date='05/13/2015 10:57:24.5980000 -08:00' severity='1' hostName='minint-tah9u9t' source='NetworkOperation' module='AeXNetComms.dll' process='PECTAgent.exe' pid='976' thread='1468' tickCount='123906' >
<![CDATA[Operation 'Connect' failed.
Protocol: HTTPS
Host: AMAASSPD05.AM.lafargeone.net:443
Path: /
Http status: 0
Id: {3931BC42-C74E-423A-A9D9-96C244E62B67}
Error type: Handshake error
Error result: 0x80090325
Error code: 0
Error note: The certificate chain was issued by an authority that is not trusted
Error message: The certificate chain was issued by an authority that is not trusted]]>
</event>
Looks like from log above, that you need to check if your NBS/NS IIS certificate is configured correctly. Check also for permissions, make sure app credential has Read/Write permissions in NBS Package Server folder configured (if your NBS is not configured in NS).
Regards.