Arduino Uno + camera OV7670 + SD card adapter : problem with double images

Hi everyone, I followed this guide ( https://hkalasua.wordpress.com/2017/09/11/ov7670-arduino-sd/ ) to save a .bmp image in an SD card, someone knows why the image I capture contains a double image of itself (as shown in the attached image), as well as some disturbance on some frames, I found only this guy here ( arduino uno - Ov7670 (without FIFO) captures the images twice at the same time - Arduino Stack Exchange ) who seems to have the same problem, but I found no solution. Is it possible that I am the only one who, having followed that guide, has this kind of problem?

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Your attached image

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Do you really have this old non fifo module? Many people got into various sorts of timing problems with it...

An arducam is somewhat more expensive of course but super easy to use...