I downloaded the new launcher and finished the installation, but every time I try to open it, it pops up with "Minecraft Launcher is currently not available in your account. Make sure you are signed in to the Store and try again. Here's the error code, in case you need it: 0x803F8001"

If anyone knows a fix to this problem, please reply with it because I am entirely locked out of playing Java Edition.

Update: A commenter on another post figured out the issue