After effects 'auto trace' crash problem

What are you tracing?   There's nothing in your timeline but two solids.

Also you've given no information as to your system hardware, software, workflow, experience with auto trace etc...

With the information you've provided my only suggestion is to make sure your caches are empty and your computer has enough free memory

Based on you previous posts I have to assume that you have very little experience.

You try to do stuff and and have a hard time.

You ask for help.

And then at some point you just stop responding.

Then a week later your back with another vague question about something totally different.

If you don't follow up or follow through in answering peoples question,

eventually people are going to stop investing their time in trying to help you.

BTW uninstalling and reinstalling should not be your first course of action when you run into a problem.

Depending on the state of your system itself, things can go wrong & get worse

If you can no longer open after effects then I suggest you contact adobe support

here Contact Customer Care

It might be necessary to give a technician remote access to your machine so they can try to gather the information necessary to

diagnose your problem.