aahhh that is a rare event its caused by having a special signal with a red skull to not get this ending youll have to find the drive and delete it if you arn’t sure which drive it is just wipe them all clean to ensure that you can progress with the game you cane wipe the drives in the main room on the right side of the glass against the wall next to the sever room
if this doesn’t help then please provide screenshots and videos if possible
Hope this helps :3