Texture won't render at all

Github link for the code: https://github.com/Kosta-Git/Pong/tree/master/Pong

I am trying to render a basic texture and i got multiple problems first of all i cannot load at all the texture.jpg file (bricks.jpg works fine).
When i try to render a texture this is what i get https://i.imgur.com/u77JLc7.png obviously this is not my textures, i have tried alot of stuff and the triangle sometimes gets a bit purple, or grey…

I have looked at tutorials and the doc but it really seems like my code doesn’t wants to work…

Anyone could provide help?

Try writing to gl_FragColor rather than diffuseColor.

Also, check for OpenGL errors.