ERROR NOT ENOUGH MEMORY FOR DISPLACEMENTS.

Good afternoon,

I have created a model of Multi-storied Mezzanine Building using STAAD.pro V8i (SELECT series 6 - Version 20.07.11.50) and When I analyze the model I get an error message that states (See attached screen shot). I have used MEMORY 300 but it shows the same error

Can you please provide guidance on how to handle this?

Thanks for your time

Md. Jamil Hasan