Calc Rule Error for @avgmissing

Hi Receiving the following error when using @avgrange essbase function in my rule.

"LKR_Reporting"=@avgrange(skipboth,@Relative("Input Currencies",0));

Error message is: @avgrange(skipboth,@Relative("Input Currencies",0));"]] (line 40): argument [1] may not have size [10] in function [@SXCOMBINE] Rule CHML.OEP_FS.XX_Currency_Conversion'

I want the system to calculate the avg for LKR_Reporting currency value as below for some accounts.

LKR_Reporting should calculate the average of the input currencies.