I don't understand why simulink can't find my model to generate estimation code

Hello, I was trying to generate a matlabo code for estimation from a model I built in matlab parameters estimator app.

My model name is battery_model_for_estimation and it's the one I'm using currently. But when I click on the option Generate Matlab function under the estimate option. I'm having the following error: Unable to find file 'battery_model_for_estimation'.

How to fix this ?

I'm on matlab R2033a