SAP Fiori : Create Sales Orders ERROR

Hi ,

we are running SAP Fiori Implementation , we already installed central hub deployment.

• Frond-end Server : SAP NW 7.4 SR1 with Fiori Add-on installation based on Fiori Schenario
  • UIX01EAP 100 SP4
• Backend Server : SAP ECC EHP4 with Fiori Add-on
  • SRA017 600 SP5

when we were activating Create Sales Order based on App Implementation: Create Sales Orders - SAP Fiori Apps for Lower Back-End Releases - SAP Library

we got problem when launched Fiori :

Image may be NSFW.
Clik here to view.

we checked Gateway Client

Image may be NSFW.
Clik here to view.

now, we checked switched to Backend server and check that class

Image may be NSFW.
Clik here to view.

any advise ??

thanks

GHochi