请老马们看下是哪里出了问题

1209645842

<< Run reinitialized 16:42:23 Mon Apr 24, 2017>>



->Processing input specifications ...

      INFORMATION
      THERE ARE HENRY COMPONENTS DEFINED IN THIS CASE, THE BINARY DATABANK
      WILL BE SEARCHED AUTOMATICALLY FOR ANY AVAILABLE HENRY CONSTANTS.

      INFORMATION
      PURE COMPONENT PARAMETERS FOR SOME COMPONENTS ARE RETRIEVED FROM
      SDF TABLE.  THESE PARAMETERS ARE USED WITH THE ELECNRTL OPTION SET
      UNLESS YOU ENTER YOUR OWN PARAMETERS IN PROP-DATA PARAGRAPHS

      PARAMETERS RETRIEVED FOR COMPONENT H2O ARE:

         VLBROC  PLXANT

  Flowsheet Analysis :

COMPUTATION ORDER FOR THE FLOWSHEET:
B1

->Calculations begin ...


   Block: B1       Model: RADFRAC
  *** SEVERE ERROR
      CMBAL CALCULATIONS FAILURE: RERUN WITH CHANGES SUGGESTED
      IF THERE ARE ANY.

  *   WARNING
      REST OF BLOCK BYPASSED DUE TO SEVERE ERROR.


  **  ERROR
      BLOCK B1 IS NOT IN MASS BALANCE:
      MASS INLET FLOW = 0.96275707E+01, MASS OUTLET FLOW = 0.77794059E+01
      RELATIVE DIFFERENCE = 0.23757145E+00


->Simulation calculations completed ...



  ***  No Warnings were issued during Input Translation ***


               ***  Summary of Simulation Errors  ***

                   Physical
                   Property         System        Simulation
  Terminal Errors      0               0               0
    Severe Errors      0               0               1
           Errors      0               0               1
         Warnings      0               0               1

->Generating results ...