"We were unable to sign you in. Please make sure you are signing in with your school or organizational account and try again."

Hi! I understand that some other people have experienced a similar issue, but there's one difference I've noticed. Everyone else with this error says it never works on that device. For the device I'm experiencing it on, it is unique to that device. I'm currently using a Lenovo e300 Chromebook gen 3. The issue is that it works for a bit, then the next time I attempt to sign in, it fails. After about a day, it seems to let me in fine. I think the issue seems to occur when I close the game or it crashes, as when I actually exit Minecraft through pressing esc on the title screen, it doesn't have a problem letting me through. My peers experience the same problem. I've seen a few posts say  it's an issue with the time, but I have my Chromebook to "Set time automatically". I'm not really sure what else to do. And it just isn't practical to keep the game open to make sure it doesn't kick me out, especially when my Chromebook can hardly run it in the first place. Thanks for the help.