Boot problem, can't find disk

Hi, I had a 2015 MacBook working perfectly with oclp all updated to the latest version and obviously automatic updates disabled to avoid OS26. From one day to another it doesn't start anymore, trying to format and reinstall it doesn't see the disk (I attach images). Now I don't understand if I can recover it, whether it's a software problem or if the memory has failed and is unrecoverable. Can you help me? The boot was done from a USB stick