Lea Michele's Twitter account had been deleted, leaving only a note from Twitter on her @leamichele page that read, "This account does not exist."The change left fans debating why the former "Glee" star went offline — and there are a host of possible reasons, not least of which is the flood of bad on-set behavior accusations Lea faced on social media after she tweeted about George Floyd's death in solidarity with the Black Lives Matter movement.Lea has since apologized at length for her