Logo appears as a white box, can't see uniforms or stadiums

I've had issues with uploading logos on the website all weekend. I've used Adobe to make sure it's PNG and within the size limit and on the website it just appears in a white box. 

The other issue I'm having, I can't see uniforms or stadiums at all. I'm assuming it's a plug-in issue but I can't see what I need to update? Help with either would be great, thank you!