Optistruct求解报错

求大神看看这个错误是什么原因，怎样解决？很急，谢谢了！
*** ERROR # 1227 *** in the input data:
Incorrect field 3: expected blank or numeric value > 0.0.
Detected while reading line 1664 from file
C:/Users/sun/Desktop/5.5chejia22.33.fem:
(this is continuation line 1 of PBEAML,10 bulk data)
"+ 8.0 0.0"