Null ref fix
Null ref fix

manesiotise/Opserver,jeddytier4/Opserver,opserver/Opserver,opserver/Opserver,jeddytier4/Opserver,manesiotise/Opserver,opserver/Opserver,mqbk/Opserver,GABeech/Opserver,mqbk/Opserver,manesiotise/Opserver,GABeech/Opserver