Hello kmun61a@gmail.com,
Sorry, I must have missed the attachment. The fix for your model is simple - do this for Function-Call Subsystem and Function-Call Subsystem2:
- right click on each of them
- click on Block parameters
- go to the Code generation tab
- select Nonreusable function as Function packaging

You should now have your model working.
Note: I have updated the FlexIO patch on your other thread (here) - added a change to the configuration block as well [even if the model was building successfully, the application would not have ran the desired ISR for flexIO; now that is fixed as well].