HTML5 Build - Not displaying textures

Hi guys! I managed to succesfully build my app into a HTML5 project, problem is no texture is displayed, I tried to go from 2048 to 128 but even so, they won’t go. Lighting is built and this is how it shows:


Another thing, when I want to upload to my server, I should upload all of these files, right?


Is there a way to reduce the size of the project?