here is the entire query. I didn't want to paste all this if the issue was just with the subquery.
SELECT
EBase."EbSocNumber", EBase."EbFirstName", EBase."EbLastName",
EBenefit."EnDateBeg", EBenefit."EnDateEnd", EBenefit."EnEECostPerPay", EBenefit."EnERCostPerPay", BenBase."BbDescrip"...