New scripts cannot be started while scripts of type [readiness] are running.

Hi All,

  I am working on data base upgrade from ax4 to ax6,

  i am running the preprocessing upgrade check list when i check

  Run Live Processing Scripts it is showing the error like

  New scripts cannot be started while scripts of type [readiness] are running. 

  any one have an idea could you please suggest me how to proceed.

   Thanks,

   Suresh.