Hey Rachel, This could be happening because the cameras on these laptops are not the best, but I encourage you to check out our Troubleshooting Page to find out more. This could be a display screen issue as well. If that is the case, you may need to replace it.
Hey Rachel, If the computer has frozen, a few components may be faulty or the device may have overheated. The troubleshooting page covers some of these problems. Replacement depends on which component is faulty. The laptop could have overheated, which means that the fan may be malfunctioning. The RAM could also be failing; you can use this guide to replace it.
Hey Rachel, The adapter may not be working properly to charge the battery. You can try a different adapter. If that does not work, the battery may be faulty. You can check out more at the device troubleshooting page. To replace the battery, flip the device over. Find the pull tab with the battery icon and pull it. The battery should pop free and you can replace it. Good luck!