Why is my query failing with SQLCODE = -420?

Can I get some help with this? I'll copy the code as well as the error. I looked up the error code

(DB2 SQL Error: SQLCODE=-420, SQLSTATE=22018, SQLERRMC=BOOLEAN)

but I'm not understanding what doesn't meet the requirements of the function? I'm just trying to pull these tables, rename ACH_ORIGINATION.DESCRIPTION when it meets certain requirements, and then filter out the ones that don't meet the requirements. I also want to group by DESCRIPTION but I'd like to get this portion working first.

SELECT
    ACH_ORIGINATION.COMPANY_SERIAL,
    ACH_ORIGINATION.NAME,
    ACH_ORIGINATION.AMOUNT,
    ACH_ORIGINATION.NEXT_POSTING_DATE,
    CASE ACH_ORIGINATION.DESCRIPTION
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
        ELSE 'Nothing'
    END AS DESCRIPTION
FROM
    CORE.ACH_ORIGINATION AS ACH_ORIGINATION
WHERE
    ACH_ORIGINATION.NEXT_POSTING_DATE IS NOT NULL AND
    DESCRIPTION <> 'Nothing'

Error:

net.sf.jasperreports.engine.JRException: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Error executing SQL statement for : ACH32Origination32Report_TableDataset_1579792666108_134237 at com.jaspersoft.studio.editor.preview.view.control.ReportControler.fillReport(ReportControler.java:466) at com.jaspersoft.studio.editor.preview.view.control.ReportControler.access$18(ReportControler.java:441) at com.jaspersoft.studio.editor.preview.view.control.ReportControler$4.run(ReportControler.java:333) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) Caused by: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Error executing SQL statement for : ACH32Origination32Report_TableDataset_1579792666108_134237 at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:809) at net.sf.jasperreports.components.table.fill.FillTableSubreport.prepareSubreport(FillTableSubreport.java:156) at net.sf.jasperreports.components.table.fill.FillTable.prepare(FillTable.java:400) at net.sf.jasperreports.engine.fill.JRFillComponentElement.prepare(JRFillComponentElement.java:151) at net.sf.jasperreports.engine.fill.JRFillElementContainer.prepareElements(JRFillElementContainer.java:332) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:384) at net.sf.jasperreports.engine.fill.JRFillBand.fill(JRFillBand.java:358) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummaryNoLastFooterSamePage(JRVerticalFiller.java:1102) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummary(JRVerticalFiller.java:1065) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportEnd(JRVerticalFiller.java:329) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:159) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:963) at net.sf.jasperreports.engine.fill.BaseFillHandle$ReportFiller.run(BaseFillHandle.java:120) at java.lang.Thread.run(Unknown Source) Caused by: net.sf.jasperreports.engine.JRException: Error executing SQL statement for : ACH32Origination32Report_TableDataset_1579792666108_134237 at net.sf.jasperreports.engine.query.JRJdbcQueryExecuter.createDatasource(JRJdbcQueryExecuter.java:240) at net.sf.jasperreports.engine.fill.JRFillDataset.createQueryDatasource(JRFillDataset.java:1114) at net.sf.jasperreports.engine.fill.JRFillDataset.initDatasource(JRFillDataset.java:691) at net.sf.jasperreports.engine.fill.JRBaseFiller.setParameters(JRBaseFiller.java:1314) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:931) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:873) at net.sf.jasperreports.engine.fill.JRFillSubreport.fillSubreport(JRFillSubreport.java:665) at net.sf.jasperreports.engine.fill.JRSubreportRunnable.run(JRSubreportRunnable.java:59) at net.sf.jasperreports.engine.fill.AbstractThreadSubreportRunner.run(AbstractThreadSubreportRunner.java:203) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ... 1 more Caused by: com.ibm.db2.jcc.am.SqlDataException: DB2 SQL Error: SQLCODE=-420, SQLSTATE=22018, SQLERRMC=BOOLEAN, DRIVER=4.13.127 at com.ibm.db2.jcc.am.id.a(id.java:669) at com.ibm.db2.jcc.am.id.a(id.java:60) at com.ibm.db2.jcc.am.id.a(id.java:127) at com.ibm.db2.jcc.am.bo.b(bo.java:4101) at com.ibm.db2.jcc.am.bo.a(bo.java:4083) at com.ibm.db2.jcc.t4.cb.a(cb.java:835) at com.ibm.db2.jcc.t4.cb.n(cb.java:801) at com.ibm.db2.jcc.t4.cb.j(cb.java:253) at com.ibm.db2.jcc.t4.cb.d(cb.java:55) at com.ibm.db2.jcc.t4.q.c(q.java:44) at com.ibm.db2.jcc.t4.sb.j(sb.java:147) at com.ibm.db2.jcc.am.no.kb(no.java:2112) at com.ibm.db2.jcc.am.oo.b(oo.java:4407) at com.ibm.db2.jcc.am.oo.fc(oo.java:743) at com.ibm.db2.jcc.am.oo.executeQuery(oo.java:713) at net.sf.jasperreports.engine.query.JRJdbcQueryExecuter.createDatasource(JRJdbcQueryExecuter.java:233) ... 11 more

Per comments, fix the CASE expression like this:

CASE    WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
        WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
        ELSE 'Nothing'
END AS DESCRIPTION