SQL ORA-02063 - What the Heck am I supposed to do to fix this? : So I got this BS, and I'm not sure how to fix.  I realize this is a shot in the dark, but I'm hoping someone who knows what they're talking about knows a thing or two about how to fix this.

"Oracle database error 904: ORA-00904: "A6"."mn:EVENT_TS:ok": invalid identifier ORA-02063: preceding line from BIQ_Z1PC"

    SELECT "t0"."TEMP(Calculation_1012184020205" AS 
    "TEMP(Calculation_1012184020205",
    "t3"."__measure__2" AS "TEMP(Calculation_1103944862926",
    "t3"."__measure__4" AS "TEMP(Calculation_1103944862921",
    "t0"."TEMP(Calculation_8523062336790" AS "TEMP(Calculation_8523062336790",
    "t0"."mn:EVENT_TS:ok" AS "mn:EVENT_TS:ok",
    "t0"."usr:Calculation_10121840202058" AS "usr:Calculation_10121840202058",
    "t0"."usr:Calculation_85230623367908" AS "usr:Calculation_85230623367908"
    FROM (
    SELECT TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" 
    AS 
    DATE)),'MM')) AS "mn:EVENT_TS:ok",
    COUNT(DISTINCT (CASE WHEN ("AQE Source Data 5.30.2018"."DISPO_CD" IS NULL 
    AND ("AQE Source Data 5.30.2018"."CUZ_AREA_ID" <> '0_DEFECTS') AND (NOT 
    (SUBSTR("AQE Source Data 5.30.2018"."EVENT_DESC", 1, LENGTH('0')) = '0')) 
    AND ("AQE Source Data 5.30.2018"."QUALITY_VELOCITY" = 'Q') AND (INSTR("AQE 
    Source Data 5.30.2018"."DISC_AREA_DESC",'PDI') > 0)) THEN "AQE Source Data 
    5.30.2018"."EVENT_NO" ELSE NULL END)) AS "TEMP(Calculation_1012184020205",
    COUNT(DISTINCT (CASE WHEN (("400 Machines"."MIN(DISC_AREA_ID)" = '400') OR 
    ("400 Machines"."MIN(DISC_AREA_ID)" = '450')) THEN "400 Machines"."SER_NO" 
    ELSE NULL END)) AS "TEMP(Calculation_8523062336790",
    COUNT(DISTINCT (CASE WHEN ("AQE Source Data 5.30.2018"."DISPO_CD" IS NULL 
    AND ("AQE Source Data 5.30.2018"."CUZ_AREA_ID" <> '0_DEFECTS') AND (NOT 
    (SUBSTR("AQE Source Data 5.30.2018"."EVENT_DESC", 1, LENGTH('0')) = '0')) 
    AND ("AQE Source Data 5.30.2018"."QUALITY_VELOCITY" = 'Q') AND (INSTR("AQE 
    Source Data 5.30.2018"."DISC_AREA_DESC",'PDI') > 0)) THEN "AQE Source Data 
    5.30.2018"."EVENT_NO" ELSE NULL END)) AS "usr:Calculation_10121840202058",
    COUNT(DISTINCT (CASE WHEN (("400 Machines"."MIN(DISC_AREA_ID)" = '400') OR 
    ("400 Machines"."MIN(DISC_AREA_ID)" = '450')) THEN "400 Machines"."SER_NO" 
    ELSE NULL END)) AS "usr:Calculation_85230623367908"
    FROM (
    SELECT EVENT_TS, 
  
    EVENT_NO,FAC_PROD_FAM_CD,SER_PFX,SER_NO,CUZ_AREA_ID,CUZ_AREA_DESC,
    DISC_AREA_ID,  
    DISC_AREA_DESC,EVENT_DESC,QUALITY_VELOCITY,ASGN_TO,FIXER_1,PD_ID,
    EVENT_CAT_ID_NO,EVENT_CID_DESC_TXT,CMPNT_SERIAL_NO,NEW_FOUND_MISSED,
    MISSED_AREA_ID,RPR_MIN,WAIT_TIME,DISPO_CD,PROTOTYPE_IND,EXT_CPY_STAT,
    CLSE_STAT,CLSE_TS,CAUSE_SHIFT,DEF_WELD_ INC,WELD_SEAM_ID
    FROM
    ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD') 
    AND (DISC_AREA_ID<>'501' AND DISC_AREA_ID<>'525' AND DISC_AREA_ID<>'600' AND 
    DISC_AREA_ID<>'700' AND DISC_AREA_ID<>'701' AND DISC_AREA_ID<>'702' AND 
    DISC_AREA_ID<>'703' AND DISC_AREA_ID<>'704' AND 
    DISC_AREA_ID<>'705' AND DISC_AREA_ID<>'706' AND DISC_AREA_ID<>'707' AND 
    DISC_AREA_ID<>'800' AND DISC_AREA_ID<>'900')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND
    EVENT_TS>=TO_DATE('2015-10-01', 'YYYY-MM-DD')
    ) "AQE Source Data 5.30.2018"
    LEFT JOIN (
    SELECT DISTINCT
    MIN(EVENT_TS), MIN(EVENT_NO), MIN(DISC_AREA_ID), MIN(DISC_AREA_DESC), 
    MIN(EVENT_DESC), MIN(EXT_CPY_STAT), MIN(FAC_PROD_FAM_CD), SER_NO, 
    PROTOTYPE_IND
    FROM ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD')
    AND (DISC_AREA_ID='400' OR DISC_AREA_ID='450')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND EVENT_TS>=TO_DATE('2015-10- 
    01', 'YYYY-MM-DD')
    GROUP BY
    SER_NO, PROTOTYPE_IND
    ) "400 Machines" ON ("AQE Source Data 5.30.2018"."EVENT_NO" = "400 
    Machines"."MIN(EVENT_NO)")
    WHERE (TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" 
    AS DATE)),'YYYY')) = 2018)
    GROUP BY TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" 
    AS DATE)),'MM'))
    ) "t0"
    INNER JOIN (
    SELECT "t1"."mn:EVENT_TS:ok" AS "mn:EVENT_TS:ok",
    SUM("t2"."__measure__1") AS "__measure__2",
    SUM((CASE WHEN ("t2"."__measure__3" > 0) THEN 1 ELSE 0 END)) AS 
    "__measure__4"
     FROM (
    SELECT "400 Machines"."SER_NO" AS "SER_NO (Custom SQL Query)",
    TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" AS 
    DATE)),'MM')) AS "mn:EVENT_TS:ok"
    FROM (
    SELECT

    EVENT_TS,EVENT_NO,FAC_PROD_FAM_CD,SER_PFX,SER_NO,CUZ_AREA_ID,
    CUZ_AREA_DESC,DISC_AREA_ID,DISC_AREA_DESC,EVENT_DESC,QUALITY_VELOCITY,
    ASGN_TO,FIXER_1,PD_ID,EVENT_CAT_ID_NO,
    EVENT_CID_DESC_TXT,CMPNT_SERIAL_NO,NEW_FOUND_MISSED,MISSED_AREA_ID,
    RPR_MIN,WAIT_TIME,DISPO_CD,PROTOTYPE_IND,EXT_CPY_STAT,CLSE_STAT,CLSE_TS,
    CAUSE_SHIFT,DEF_WELD_INC,WELD_SEAM_ID
    FROM
    ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD') 
    AND (DISC_AREA_ID<>'501' AND DISC_AREA_ID<>'525' AND DISC_AREA_ID<>'600' AND 
    DISC_AREA_ID<>'700' AND DISC_AREA_ID<>'701' AND DISC_AREA_ID<>'702' AND 
    DISC_AREA_ID<>'703' AND DISC_AREA_ID<>'704' AND 
    DISC_AREA_ID<>'705' AND DISC_AREA_ID<>'706' AND DISC_AREA_ID<>'707' AND 
    DISC_AREA_ID<>'800' AND DISC_AREA_ID<>'900')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND
    EVENT_TS>=TO_DATE('2015-10-01', 'YYYY-MM-DD')
    ) "AQE Source Data 5.30.2018"
    LEFT JOIN (
    SELECT DISTINCT
    MIN(EVENT_TS), MIN(EVENT_NO), MIN(DISC_AREA_ID), MIN(DISC_AREA_DESC), 
    MIN(EVENT_DESC), MIN(EXT_CPY_STAT), MIN(FAC_PROD_FAM_CD), SER_NO, 
    PROTOTYPE_IND
    FROM ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD')
    AND (DISC_AREA_ID='400' OR DISC_AREA_ID='450')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND EVENT_TS>=TO_DATE('2015-10- 
    01', 'YYYY-MM-DD')
    GROUP BY
    SER_NO, PROTOTYPE_IND
    ) "400 Machines" ON ("AQE Source Data 5.30.2018"."EVENT_NO" = "400 
    Machines"."MIN(EVENT_NO)")
    WHERE (TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" 
    AS DATE)),'YYYY')) = 2018)
    GROUP BY "400 Machines"."SER_NO",
    TO_NUMBER(TO_CHAR(TRUNC(CAST("AQE Source Data 5.30.2018"."EVENT_TS" AS 
    DATE)),'MM'))
    ) "t1"
    INNER JOIN (
    SELECT "400 Machines"."SER_NO" AS "SER_NO (Custom SQL Query)",
    COUNT(DISTINCT (CASE WHEN ((CASE WHEN (INSTR("AQE Source Data 
    5.30.2018"."DISC_AREA_DESC",'PDI') > 0) THEN 1 WHEN (("AQE Source Data 
    5.30.2018"."DISC_AREA_ID" = '500') AND ("AQE Source Data 
    5.30.2018"."QUALITY_VELOCITY" = 'Q')) THEN 2 ELSE NULL END) = 1) THEN "AQE 
    Source Data 5.30.2018"."SER_NO" WHEN NOT ((CASE WHEN (INSTR("AQE Source Data 
    5.30.2018"."DISC_AREA_DESC",'PDI') > 0) THEN 1 WHEN (("AQE Source Data 
    5.30.2018"."DISC_AREA_ID" = '500') AND ("AQE Source Data 
    5.30.2018"."QUALITY_VELOCITY" = 'Q')) THEN 2 ELSE NULL END) = 1) THEN NULL 
    ELSE NULL END)) AS "__measure__1",
    COUNT(DISTINCT (CASE WHEN ("AQE Source Data 5.30.2018"."DISPO_CD" IS NULL 
    AND ("AQE Source Data 5.30.2018"."CUZ_AREA_ID" <> '0_DEFECTS') AND (NOT 
    (SUBSTR("AQE Source Data 5.30.2018"."EVENT_DESC", 1, LENGTH('0')) = '0')) 
    AND ("AQE Source Data 5.30.2018"."DISC_AREA_ID" = '400')) THEN "AQE Source 
    Data 5.30.2018"."EVENT_NO" ELSE NULL END)) AS "__measure__3"
    FROM (
    SELECT
    EVENT_TS,EVENT_NO,FAC_PROD_FAM_CD,SER_PFX,SER_NO,CUZ_AREA_ID,
    CUZ_AREA_DESC,DISC_AREA_ID,DISC_AREA_DESC,EVENT_DESC,QUALITY_VELOCITY,
    ASGN_TO,FIXER_1,PD_ID,EVENT_CAT_ID_NO,
    EVENT_CID_DESC_TXT,CMPNT_SERIAL_NO,NEW_FOUND_MISSED,MISSED_AREA_ID,
    RPR_MIN,WAIT_TIME,DISPO_CD,PROTOTYPE_IND,EXT_CPY_STAT,CLSE_STAT,CLSE_TS,
    CAUSE_SHIFT,DEF_WELD_INC,WELD_SEAM_ID
    FROM
    ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD') 
    AND (DISC_AREA_ID<>'501' AND DISC_AREA_ID<>'525' AND DISC_AREA_ID<>'600'
    AND DISC_AREA_ID<>'700' AND DISC_AREA_ID<>'701' AND DISC_AREA_ID<>'702' AND 
    DISC_AREA_ID<>'703' AND DISC_AREA_ID<>'704' AND 
    DISC_AREA_ID<>'705' AND DISC_AREA_ID<>'706' AND DISC_AREA_ID<>'707' AND 
    DISC_AREA_ID<>'800' AND DISC_AREA_ID<>'900')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND
    EVENT_TS>=TO_DATE('2015-10-01', 'YYYY-MM-DD')
    ) "AQE Source Data 5.30.2018"
    LEFT JOIN (
    SELECT DISTINCT
    MIN(EVENT_TS), MIN(EVENT_NO), MIN(DISC_AREA_ID), MIN(DISC_AREA_DESC), 
    MIN(EVENT_DESC), MIN(EXT_CPY_STAT), MIN(FAC_PROD_FAM_CD), SER_NO,
    PROTOTYPE_IND
    FROM ABUS_DW.V_BIQ_R8_QWB_EVENTS
    WHERE
    (FAC_PROD_FAM_CD='ACOM' OR FAC_PROD_FAM_CD='SCOM' OR FAC_PROD_FAM_CD='LAP' 
    OR FAC_PROD_FAM_CD='RM' OR FAC_PROD_FAM_CD='SCRD')
    AND (DISC_AREA_ID='400' OR DISC_AREA_ID='450')
    AND PROTOTYPE_IND<>'Y' AND EXT_CPY_STAT<>'D' AND EVENT_TS>=TO_DATE(
    '2015-10- 01', 'YYYY-MM-DD')
    GROUP BY
    SER_NO, PROTOTYPE_IND
    ) "400 Machines" ON ("AQE Source Data 5.30.2018"."EVENT_NO" = "400 
    Machines"."MIN(EVENT_NO)")
    GROUP BY "400 Machines"."SER_NO"
    ) "t2" ON (("t1"."SER_NO (Custom SQL Query)" = "t2"."SER_NO (Custom SQL 
    Query)") OR (("t1"."SER_NO (Custom SQL Query)" IS NULL) AND ("t2"."SER_NO 
    (Custom SQL Query)" IS NULL)))
    GROUP BY "t1"."mn:EVENT_TS:ok"
    ) "t3" ON (("t0"."mn:EVENT_TS:ok" = "t3"."mn:EVENT_TS:ok") OR 
    (("t0"."mn:EVENT_TS:ok" IS NULL) AND ("t3"."mn:EVENT_TS:ok" IS NULL)))