Can I use SPSS software to do the simultaneous equation modeling?

[Sajid Raza]

I tried to model simultaneous equation using 3SLS by SPSS and R extension . but it gave me error and warning. Can anyone help me to address these errors and warning. I am not understanding why it gives error and warning.
screen-shot is attached.

Thank you in advance.

[Sajid Raza]

how to deal with this warning in SPSS using R plugin.