HELP! :) On my picks I can't subir fotos to them. Please help :)

it just pretending to load and never actually getting the picture, it just started couple days hace on me, can tu help me? :)

I don't really know what the problem might be ... that happens to me often and I usually hit vista previa and then go back and editar it so I can try cargando... the picture again. That usually helps - but if it's happening every single time tu try to load a picture I don't know what it could be!

thanks :)