Fix data handler first position crash
Fix data handler first position crash

jssenyange/traccar,tsmgeek/traccar,jssenyange/traccar,tsmgeek/traccar,joseant/traccar-1,ninioe/traccar,AnshulJain1985/Roadcast-Tracker,tananaev/traccar,renaudallard/traccar,al3x1s/traccar,joseant/traccar-1,renaudallard/traccar,orcoliver/traccar,tsmgeek/traccar,5of9/traccar,jssenyange/traccar,ninioe/traccar,jon-stumpf/traccar,tananaev/traccar,orcoliver/traccar,ninioe/traccar,stalien/traccar_test,vipien/traccar,duke2906/traccar,stalien/traccar_test,vipien/traccar,duke2906/traccar,jon-stumpf/traccar,tananaev/traccar,AnshulJain1985/Roadcast-Tracker,al3x1s/traccar,jon-stumpf/traccar,5of9/traccar,orcoliver/traccar