[sql] missing FROM-clause entry for table

I am trying to use an inner join a view and a table using the following query

SELECT 
   AcId, AcName, PldepPer, RepId, CustCatg, HardCode, BlockCust, CrPeriod, CrLimit, 
   BillLimit, Mode, PNotes, gtab82.memno 
FROM
   VCustomer 
INNER JOIN   
   vcustomer AS v1 ON gtab82.memacid = v1.acid 
WHERE (AcGrCode = '204' OR CreDebt = 'True') 
AND Masked = 'false'
ORDER BY AcName

and the error is

missing FROM-clause entry for table "gtab82"

Because that gtab82 table isn't in your FROM or JOIN clause. You refer gtab82 table in these cases: gtab82.memno and gtab82.memacid