新手aspen模拟出错，大神提示

1209645842

aspen模拟数据怎么改多出现这样的错误，看不懂大神求解一下
*  WARNING
   FEED PRESSURE  0.10132E+06 (N/SQM) OF STREAM S2
   IS LOWER THAN STAGE  15 PRESSURE  0.20132E+06 (N/SQM).

*  WARNING
   REACTIVE FLASH FAILURE   INSIDE LOOP RMSERR = 9.4646D-05 OUTSIDE LOOP
   RMSERR =    8.6489D-05

-  INFORMATION
   REACTIVE FLASH FAILURE   INSIDE LOOP RMSERR = 6.2315-02 OUTSIDE LOOP
   RMSERR =    1.1798D-06 COMPOSITE FEED FLASH FAILED TO CONVERGE; COLUMN
   CALCULATIONS CONTINUE.  IF CALCULATIONS FAIL, SUPPLY T-EST AND OPTIONALLY
   BOTH X-EST AND Y-EST.

***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 = 0.26575000E+01, MASS OUTLET FLOW = 0.26347963E+01
   RELATIVE DIFFERENCE = 0.86168589E-02