URL: http://back-office.kameleoon.com/kameleoon/abTest/exportExperimentToExcel?id=17625&analyticsParamsList={%22primary_KAMELEOON_5664%22:{%22id%22:17625,%22filters%22:[],%22ventilation%22:null}}

Cannot get property 'preferredLocale' on null object
java.lang.NullPointerException: Cannot get property 'preferredLocale' on null object
        at gsp_kameleoon_back_office_abTest_displayFormatedResultsForGoal_gsp.run(gsp_kameleoon_back_office_abTest_displayFormatedResultsForGoal_gsp.groovy:33)
        at com.kameleoon.backoffice.AbTestController$_exportExperimentToExcel_closure48.doCall(AbTestController.groovy:509)
        at com.kameleoon.backoffice.AbTestController.exportExperimentToExcel(AbTestController.groovy:492)
        at grails.plugin.cache.web.filter.PageFragmentCachingFilter.doFilter(PageFragmentCachingFilter.java:198)
        at grails.plugin.cache.web.filter.AbstractFilter.doFilter(AbstractFilter.java:63)
        at org.tonyzampogna.xss.sanitizer.filter.XssFilter.doFilterInternal(XssFilter.java:23)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)