Error "Pipeline Pilot exception caught" ON ds 2.0

I'd like to use the Discovery Studio 2.0 and get the following error each time I try to run the projects.

The file 'C:\Program Files (x86)\web\jobs\Tawee Donchai\{clp68044-25C0-4D1A-B394-47CF51815E7D}\Input\Ligands.sd' could not be opened for reading.

FileDataReader::OpenSourceFromProperties: Pipeline Pilot exception caught

DataReader::onInitialize: Pipeline Pilot exception caught

FileDataReader::onInitialize: Pipeline Pilot exception caught

MDLSDReader::onInitialize: Pipeline Pilot exception caught

-> SD Reader - error during Initialization phase

CProtocolBaseImpl::GetNextStartNodeForNewData: Pipeline Pilot exception caught

CProtocolBaseImpl::SetUpComponentStack: Pipeline Pilot exception caught

CProtocolStd::onProcess: Pipeline Pilot exception caught

CProtocol::onProcess: Pipeline Pilot exception caught

-> DS Ligand Reader - error during Data Record Processing phase

CProtocolStd::onProcess: Pipeline Pilot exception caught

CProtocol::onProcess: Pipeline Pilot exception caught

vcRunComponent::onProcess: Pipeline Pilot exception caught

vcRunComponent::processData: Pipeline Pilot exception caught

CShortcutComponent::onProcess: Pipeline Pilot exception caught

-> Shortcut Component - error during Data Record Processing phase

CProtocolStd::onProcess: Pipeline Pilot exception caught

CProtocol::onProcess: Pipeline Pilot exception caught

Protocol Run DS Protocol, user Tawee Donchai: Pipeline Pilot exception caught

Protocol Run DS Protocol, user Tawee Donchai: Protocol failed: Pipeline Pilot error

Pipeline Pilot Server version 6.1.5.0

Server OS: Windows 6.1 Workstation Service Pack 1

system infor as follow:

Discovery studio version 2.0

computer Dell Latitude E6510

Processor Intel(R) Core(TM) i5 CPU M520@ 2.40GHz 2.40 GHz

Ram 4G

64-bit Operating System

windows 7 Professional Service Pack 1

I use the same files run the project on other PC (Windows XP Pro, service Pack 3) 32-bit and the project run successfully fine.

Could you help with this problem?

Best,

Tawee Donchai