Printer loses references

Good morning everyone, I’ve had a “v3 se” for a couple of months, I’ve noticed that sometimes in the case of very long prints a fairly important error occurs.
For no apparent reason it seems that the printer loses references and therefore the new layers are off-center with respect to the object.
What could it be due to? I imported the stl file into creality print as always and generated the code from there

Belt tension, check that for starters, if it is too loose it can jump a tooth and cause this. Also check the rubber wheels on the X axis gantry, the bottom left, as viewed from the picture, has an eccentric nut that might need tightening, the jumping on the X axis could also be belt tension.

Thank you very much! I’ll do it next time I print!