org.hibernate.hql.ast.QuerySyntaxError: expecting CLOSE, found '+' near line 1, column 161
    [select
        ss.id.sku.sizeCode,
        ss.id.sku.sizeName,
        sum( ss.endOfPeriod.units.thisWeek ),
        sum( ss.inTransit.units.thisWeek ),
        sum( ss.sales.units.thisWeek
            +  ss.sales.units.oneWeekAgo
            + ss.sales.units.twoWeeksAgo
            + ss.sales.units.threeWeeksAgo),
        sum( ss.sales.units.lifeToDate),
        sum( ss.receipts.units.lifeToDate),
        sum( ss.transfers.units.lifeToDate),
        sum( ss.adjustments.units.lifeToDate),
        sum( ss.replenishmentMinUnits),
        sum( ss.replenishmentMaxUnits),
        min( ss.replenishmentStartDate),
        max( ss.replenishmentEndDate)
    from
        com.fgl.stylecard.model.SkuStore as ss     
        inner join  ss.id.sku as sku 
    where
        sku.styleNumber = :styleNumber
    group by
        ss.id.sku.sizeCode,
        ss.id.sku.sizeName,
        ss.id.sku.sizeCode
    order by
        ss.id.sku.sizeCode]
    at org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:63)
    at org.hibernate.hql.ast.QueryTranslatorImpl.parse(QueryTranslatorImpl.java:215)
    at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:127)
    at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:83)

INFO  SettingsFactory:273 - Query translator: org.hibernate.hql.classic.ClassicQueryTranslatorFactory
ERROR StandardWrapper[/stylecard:action]:269 - Servlet.service() for servlet action threw exception
org.hibernate.HibernateException: could not instantiate QueryTranslatorFactory: org.hibernate.hql.classic.ClassicQueryTranslatorFactory
   at org.hibernate.cfg.SettingsFactory.createQueryTranslatorFactory(SettingsFactory.java:278)
   at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:103)
   at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1505)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1053)