DDPG RL : How can use logged data(.mat file) for reinforcement learning

I want to train an agent that well tracking a logged mat file data. So the simulink model is :

And I have two problems.

1. How can i resolve below error??

2. There is only one iteration, but I set up max episodes : 5000. Is this error occur from above error???

[Emmanouil Tzorakoleftherakis]

This should be doable, but we do not have enough information to help. If you can provide a reproduction model I should be able to take a look.

[MIN U SHIN]

How can I submit a reproduction model??

[MIN U SHIN]

i have acceleration command, brake command, current velocity and desired velocity .mat files. And I want to agent's action follow acceleration command and brake command without vehicle model function. Is that possible??