Fiori : Initialization of BEx Query Failed

I am implementing Trial Balance(Version 2) FPM/Webdynpro App from Fiori Apps Library

following App Implementation : Trial Balance guide for S/4 Hana 1610.

When I launch the Trial Balance App.It says "Initialization of query 2CCFITRIALBALQ0001 Failed"(PFA for the error ).

Please let me know how to Initialize or Activate BEx Query.

Regards,

Rehan Sayed