Internal SSD "ejects" shortly after startup

I start the computer and it boots normally and the functions for a couple of minutes before suddenly freezing because the SSD drive disconnects itself. If I try to use the Macbook as an external drive and plug it into another computer, it also suddenly ejects after a few minutes of actual use (it sometimes will remain connected until any kind of data read/write operation takes place). Given that I can reboot endlessly, there clearly seems to be no data corruption or read/write errors. But I’ve never seen anyone with a similar question on this forum or any other, so I’m hoping maybe somebody somewhere has experienced or has knowledge of this.