#Error - Invalid Member Name when refreshing reports

Hi Experts,

I have an issue with one of my reports ,  i have a formula on 4 of my columns and when i run for different regions the report shows blanks members as shown below.#Error - Invalid Member Name: #Not an EPMOlapMember formula. Am i missing any sheet options or user options.

I tried all the possibilities of excel and nothing seems to be working. Please guide me in fixing this.

Regards,
SSK