I downloaded and bought minecraft. Everything worked. But about 4 months after the purchase nothing worked anymore the screen was the same as before the purchase and I can only play the demo version which is normal and who not what should I do now
Maybe you have been logged out of your Microsoft account? Which version at all, PC, iOS, Android…
Try to log in to minecraft.net and then in the Luncher on the top right you should have your MC name and right next to it an arrow down, because you can then add an account, it may be that an error that the password is wrong. Then just replace the username with the e-mail, then it should work. I assume that you are using Windows, you can also log in to Mojang with your account, as the account runs on Mojang
I play on the mac book which is helpful
Unfortunately I do not have Windows
Now I can't start the minecraf anymore it says nin minecraft ended unexpectedly and nothing works anymore
Try to log in to minecraft.net and Mojang on the website anyway should also go to iOS