Pro-Ject Debut Carbon Turntable working on and off

My Pro-ject TT is working again, but 3 times this year it has shut down and won't spin.

After the 1st time, I took off the band and put it back on, and not much else except for that. It worked fine for a while.

2nd time - I got a new band. Started working again.

3rd time, removed the inner platter and re-placed it, and the put the band back on. It's working again.

It's not a connection issue as far as I can tell.

It's fine now, but I can't feel confident it will stay this way.

It's about 9 or 10 years old. Great when it plays...

I've gotten lazy about picking up the tonearm when an LP ends, and have let it stay on the run-out for a while a bunch of times. I've since stopped doing that, but I wonder if that had an effect.

What do you consider the problem and potential solution might be?

Thank you.