Minecraft launcher keeps saying demo

I've had this account for a while now and this "play demo" keeps popping up every now and then, while now it wont go away to where i can play minecraft java and I don't know why it is doing it, its a bought account but yet this still pops up and wondering if this is a bug with purchasing new minecraft accounts, i would like to keep playing on this account when its a bought minecraft account. the account is using a microsoft account