Error: Generated SELECT statement. Syntax Error: Expecting
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My SQL is below along with the error above it. I dont know what the problem is anymore. Ive tried so much. Can somebody please help?

Error : Generated SELECT statement
        Syntax Error : Expecting ',' or 'FROM' after column alias or '*'
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SELECT        ALCIE.POLINE.DISTDIV, ALCIE.POLINE.DISTDEPT, ALCIE.POLINE.DISTGL, ALCIE.POLINE.LINENO, ALCIE.POLINE.ITEM, ALCIE.POLINE.ITEMDES1, 
                         ALCIE.POLINE.ITEMDES2, ALCIE.POLINE.PO, ALCIE.POLINE.PODATE, ALCIE.POLINE.PURCHUOM, ALCIE.POLINE.QTYORD, ALCIE.POLINE.CUMQTYREC, 
                         ALCIE.POLINE.UNITCOST, ALCIE.POLINE.CUMQTYREC * ALCIE.POLINE.UNITCOST AS EXPR1, ALCIE.POLINE.RECDATE, ALCIE.POLINE.VENDOR, 
                         ALCIE.APMASTER.NAME1, ALCIE.POLINE.STATUS, ALCIE.POHEADER.STATUS AS EXPR2, ALCIE.POLINE.STKLOC, ALCIE.POLINE.LAST_REC_USERID, 
                         ALCIE.POLINE.ITEMDES3, 'ALCIE_POLINE.PO' || 'ALCIE_POLINE.LINENO' AS EXPR3, ALCIE.POHEADER.COMMENTS4
FROM            ALCIE.POLINE, ALCIE.POHEADER, ALCIE.APMASTER
WHERE        ALCIE.POLINE.CO = ALCIE.POHEADER.CO AND ALCIE.POLINE.PO = ALCIE.POHEADER.PO AND ALCIE.POHEADER.CO = ALCIE.APMASTER.CO AND 
                         ALCIE.POHEADER.VENDOR = ALCIE.APMASTER.VENDOR AND (ALCIE.POLINE.CO = 'WSA') AND (ALCIE.POLINE.PO = :EnterPoNumber)
ORDER BY ALCIE.POLINE.ITEMDES1, ALCIE.POLINE.PO