Welcome to Android Central! Which version of Android does the tablet have? From what I can tell on the web, it's probably running Android 4.2, which is really out of date, and so the Play Store is probably no longer supported.
Welcome to Android Central. The Digital 2 tablet only is capable of running Android 4.1 KitKat. Consequently it will not be capable of running most apps. Your best option is to purchase an up to date tablet. If you have any other questions then please register as a member. https://forums.androidcentral.com/showthread.php?t=409154&p=3754645&viewfull=1#post3754645