Gui elements are not displayed on the screen

Hello, i am having an issue regarding my gui elements which are not displayed on screen after i build the apk.
I’ve used display on screen debug and it seems that my images are not loaded (the texture array is null) although it is working if i build it for pc.
I’ve tried it using this function:

cardTextures[0] = (Texture2D)Resources.LoadAssetAtPath("Assets/Data/Textures/images.jpg",typeof(Texture2D));
and 
cardTextures[0] = (Texture2D)Resources.LoadAssetAtPath("Assets/Resources/images.jpg", typeof(Texture2D));

where my already loaded textures are present.

i’ve also tried it without the extension from the end.
Any ideas why it might not display them ?
They are set on 0,0,0 with locations modified by pixel inset, and my camera have a gui layer attached.

Did you read the documentation for LoadAssetAtPath?

This function always return null in the standalone player or web player. This is useful for quickly accessing an asset for use in the editor only.

You could also have searched the forum and found the same question answered previously.

I suspect you meant to use Resources.Load.

Try this
cardTextures[0] = (Texture2D)Resources.Load(“Assets/Data/Textures/images.jpg”,typeof(Texture2D)) as Texture2D;
maby is not need to put .jpg