404 error when loading an image from webhost

Hi can someone please help me figure this out. I have a website that works perfectly fine when I load it from the local files on my computer but from the web host the background image fails to load giving me a 404 error. The files are uploaded in the same order they are locally so I don't understand why it can't see or load the file. I've lowered the file size and also tried saving it as jpg, and bmp but nothing. I also thought maybe it was the webhost not updating my files fast enough or maybe my cache but I'm using IE10, IEEdge, Google Chrome, and Safari and Google on my iPhone and get the same results. Lastly I checked the image path which are relative, and verified my code was correctly formatted from W3Schools. I really don't know what else it could be. Is there something simple I'm missing? I'm rewriting my code now but would greatly appreciate it if someone could give me some pointers. Thanks.