Selection "0FISCPER3_E" could not be found in the data source Lumira Designer

I'm getting error when i run document in lumira designer

Error Selection "0FISCPER3_E" could not be found in the data source Lumira Designer

Data source is loaded and using getDataAsStringExt("003N8M7212XM5WSX51OIFOC93",{"0COMP_CODE":cCode,"0FISCYEAR":cYear,"0FISCPER3_E":cPeriod})

in BW rsrt tcode its working fine....

attached screenshoot is for your understanding