About AliExpress access token

Hello

I do not understand what is happening. I received this message:
ALD – AliExpress Dropshipping and Fulfillment for WooCommerce:
Your AliExpress access token expires, products/tracking numbers auto-updating and bulk AliExpress orders no longer work. Get access token

What does this message mean?

I clicked on the button: Get new access token and error message: Data invalid.

Does this mean that every month, I have this manipulation to do then, that I did it last month, when I bought the full version of your module??????????????

What does that mean? Please explain to me.

It didn’t work. So what should I do?

Thanks