Hello Nancy,

I'd like to bring to your attention that there are databases accessible in the help resources. I'm sharing the document with you for reference. The error code messages indicate what is missing or incorrectly defined. In your situation, it's pointing to incorrect data in field #3, which pertains to material data information that hasn't been defined. To resolve this error, please define the material for the property.

Note: You can get the document in the help with the name 

Error Message Database

Thank you.

Best regards,

Sriramanuj Prabhu

Here is the help link for the error database.

https://help.altair.com/hwsolvers/os/topics/solvers/os/error_msg_database_intro_r.htm