Image has a LONGDESC attribute even though the image appears to be decorative only.

Decorative images should not have any long descriptions.

Remove the LONGDESC attribute from the IMG tag.

The LONGDESC attribute can be used to provide a long description of the associated image when the description would not fit in the ALT attribute. This may be needed, for example, when the image represents a chart or a diagram, which typically need long explanations.

However, for images used only for decorative purposes, a long description is unnecessary, and people using browsers that take advantage of that feature will find it distracting.