There is a TDA PDF file listing all the companies that are not up to date on their filings. Apparently, these companies will be put on the expert list. These companies has until the 28th of Sept 2021 to file in order to keep their standing as a pink stock.
AGAIN, ADVT IS NOT ON THE LIST. That means ADVT has been working, behind the scene, to stay up to date and thinking ADVT will rise again, one day, from the ashes.