added check for needed variables
added check for needed variables

MBRG/otrs,noritnk/otrs,nilei/otrs,muehlbauer/otrs,nilei/otrs,muehlbauer/otrs,mburggraf/otrs,PortgasDAce/otrs,rudy500/otrs,brandonshults01/otrs,PortgasDAce/otrs,linearregression/otrs,eliasp/otrs,xhoy/otrs,StCyr/otrs,capeit-tto/otrs,vlascoder/otrs,mburggraf/otrs,StCyr/otrs,balazj/otrs,s7design/otrs,mbeijen/otrs-1,rudy500/otrs,PortgasDAce/otrs,moritz/otrs,nilei/otrs,balazj/otrs,MBRG/otrs,capeit-tto/otrs,brandonshults01/otrs,oiami/otrs,StCyr/otrs,rudy500/otrs,moritz/otrs,oiami/otrs,nilei/otrs,nilei/otrs,StCyr/otrs,muehlbauer/otrs,rudy500/otrs,thorsteneckel/otrs,eliasp/otrs,xhoy/otrs,s7design/otrs,mburggraf/otrs,eliasp/otrs,rudy500/otrs,s7design/otrs,linearregression/otrs,thorsteneckel/otrs,PortgasDAce/otrs,crythias/otrs,balazj/otrs,balazj/otrs,thorsteneckel/otrs,moritz/otrs,mbeijen/otrs-1,mbeijen/otrs-1,xhoy/otrs,MBRG/otrs,moritz/otrs,linearregression/otrs,xhoy/otrs,brandonshults01/otrs,noritnk/otrs,s7design/otrs,crythias/otrs,thorsteneckel/otrs,crythias/otrs,MBRG/otrs,oiami/otrs,noritnk/otrs,brandonshults01/otrs,crythias/otrs,thorsteneckel/otrs,vlascoder/otrs,mburggraf/otrs,brandonshults01/otrs,eliasp/otrs,capeit-tto/otrs,PortgasDAce/otrs,eliasp/otrs,xhoy/otrs,StCyr/otrs,oiami/otrs,muehlbauer/otrs,mburggraf/otrs,balazj/otrs,vlascoder/otrs,muehlbauer/otrs,linearregression/otrs,MBRG/otrs,linearregression/otrs,s7design/otrs,oiami/otrs,crythias/otrs,moritz/otrs