Schiller Neuman SLIP Velocity Mixture Model V3.5a

Hi folks.

I have trying to use the Schiller Neuman Slip velocity model for a few days but no success.

I am successful in using the Hadamard-Rybczynski but I need to use the Schiller Model for comparison
purposes.

However I get the error 7248 - Undefined value found.

But I can not understand why...

The reason I am using V3.5a is because Helpdesk have said to me that the Schiller model will only work
in version V4.2.

Hope someone can help, because I am really stuck.

The file is attached.

Cheers.