| Error 2015-05-22 16:03:41,013 [http-bio-8080-exec-3] ERROR errors.GrailsExceptionResolver  - NullPointerException occurred when processing request: [GET] /kameleoon/preferences/ajaxObtainRegionAndCityNames - parameters:
regionNamePrefix:
cityNamePrefix:
Cannot invoke method toLowerCase() on null object. Stacktrace follows:
Message: Cannot invoke method toLowerCase() on null object
    Line | Method
->>   98 | obtainRegionNames            in com.kameleoon.tracking.TargetingService
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|    824 | ajaxObtainRegionAndCityNames in com.kameleoon.backoffice.PreferencesController
|    198 | doFilter . . . . . . . . . . in grails.plugin.cache.web.filter.PageFragmentCachingFilter
|     63 | doFilter                     in grails.plugin.cache.web.filter.AbstractFilter
|     23 | doFilterInternal . . . . . . in org.tonyzampogna.xss.sanitizer.filter.XssFilter
|   1145 | runWorker                    in java.util.concurrent.ThreadPoolExecutor
|    615 | run . . . . . . . . . . . .  in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run                          in java.lang.Thread
URL: http://back-office.kameleoon-dev.net/kameleoon/preferences/ajaxObtainRegionAndCityNames?regionNamePrefix=&cityNamePrefix=

Cannot invoke method toLowerCase() on null object
java.lang.NullPointerException: Cannot invoke method toLowerCase() on null object
        at com.kameleoon.tracking.TargetingService.obtainRegionNames(TargetingService.groovy:98)
        at com.kameleoon.backoffice.PreferencesController.ajaxObtainRegionAndCityNames(PreferencesController.groovy:824)
        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)