Hello,
The problem might have several reasons, but here are two things to consider in order to solve it:
1) It looks like the Matlab path has some issue. Please clear the Matlab path from the "Set Path" window and run the "mbd_s32k3_path.m" script again.

2) You are using the latest MBDT toolbox 1.5.0
Please make sure that you are opening this Simulink model in Matlab R2021a or a newer version.