ERROR #1479 in the input data

Hi, I'm trying to make a buckling analysis of a CBEAM element for a project and I'm having some problems when I try to run the analaysis in Optistruct. I keep getting the message

*** See next message about line 129 from file:
     D:/asus/Desktop/MEst/HM/buckling.fem
  'PBEAML         1       1                                        +'
 
 *** ERROR # 1479 *** in the input data:
 Incorrectly formatted numeric data in field 9.
 (If it is a character field, it should start with a letter.)

I looked into everything in my model and all seems fine I don't get where the error comes from. Please help, the model is attached 

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