Items Have Black Textures

A list of items that i am having is a black texture onto them.

Each item is from a section. (Ingame Creative Tabs)

The following image of an item is being taken from each section.

A list of section is below.

Heads And Signs > Section of Creative Tabs: Decoration Blocks

Cauldron > Section of Creative Tabs: Brewing

Cake > Section of Creative Tabs: Foodstuffs

Bell > Section of Creative Tabs: Decoration Blocks

Lever > Section of Creative Tabs: Redstone

Zombie Head And Player Heads > Section of Creative Tabs: Decoration Blocks

Barrier > Section of Creative Tabs: None/Unknown