求高手帮忙看看模拟对二甲苯结晶的错误，不胜感激

631

ERROR
      PHYSICAL PROPERTY PARAMETER DHSFRM   IS MISSING
      FOR THE FOLLOWING COMPONENTS:
          PX-S
      ABSENCE OF THIS PARAMETER WILL RESULT IN INCORRECT ENTHALPY RESULTS.
ERROR
      BLOCK B14 IS NOT IN MASS BALANCE:
      MASS INLET FLOW = 0.68149007E+01, MASS OUTLET FLOW = 0.00000000E+00
      ABSOLUTE DIFFERENCE = 0.68149007E+01

高手帮忙看看一下，谢谢.