Low Contrast: Ensure there is enough contrast between the QR code and its background. A dark code on a light background is best.
Blurry or Small: The QR code may be too blurry or printed too small for a camera to read it clearly. Ensure it is high resolution.
Content Overload (Static Codes): A static QR code with too much information can become very dense and hard to scan. Try using a dynamic QR code instead, as it keeps the code itself simple.
Inverted Colors: Avoid using light-colored QR codes on dark backgrounds, as many scanning apps cannot read them.
