Error Sandisk Extreme Pro 128 gb

Everything is fine, but sometimes the cdj doesnt work well. The issue start when I try to load any song and suddenly get "blocked" with the eject/load lock and show a error code which I don't remember. When I try to press Cue botton and load another song, still not working. The solution is turn off the equipment, but in the middle of the night it is not a good idea. I don't know if it is because the rekordbox(6.6.1), the USB(which is new), or the cdj(it happens in two different setup)

I have to say that I use de eject/load lock in unlock mode, because i though it would be the solution. 

Can someone help me please. Every Time I use my USB with a cdj, appears the error. Maybe 1 or 2 times per night.

Thank you