URL could not be determined

Fatal error: Uncaught exception 'KurogoDataException' with message 'URL could not be determined' in /var/local/asmobile/kurogo/releases/20130430102656/lib/DataRetriever/URLDataRetriever.php:407
Stack trace:
#0 /var/local/asmobile/kurogo/releases/20130430102656/lib/DataRetriever.php(145): cacheKey()
#1 /var/local/asmobile/kurogo/releases/20130430102656/lib/DataRetriever.php(410): getResponse()
#2 /var/local/asmobile/kurogo/releases/20130430102656/app/modules/map/lib/MapDataModel.php(154): getData()
#3 /var/local/asmobile/kurogo/releases/20130430102656/app/modules/map/lib/MapDataModel.php(124): categories()
#4 /var/local/asmobile/kurogo/releases/20130430102656/app/modules/map/lib/MapDataModel.php(106): setCategoryId(string)
#5 /var/local/asmobile/kurogo/releases/20130430102656/app/modules/map/MapWebModule.php(1010): findCategory(string)
#6 /var/local/asmobile/kurogo/releases/20130430102656/app/modules/map/MapWebModule.php(922): getSelectedPlacemarks()
#7 /var/local/asmobile/sites/releases/20140307160715/Princeton/app/modules/map/SiteMapWebModule.php(306): initializeForPage()
#8 /var/local/asmobile/kurogo/releases/20130430102656/lib/WebModule.php(1784): initializeForPage()
#9 /var/local/asmobile/kurogo/releases/20130430102656/lib/WebModule.php(1990): setPageVariables()
#10 /var/local/asmobile/kurogo/releases/20130430102656/www/index.php(323): displayPage()
#11 {main}
thrown in /var/local/asmobile/kurogo/releases/20130430102656/lib/DataRetriever/URLDataRetriever.php on line 407

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