Website's logo not getting displayed

Question

I am working on a website. I have uploaded a logo for the site. The logo displays fine when I run it on my PC, but when I upload the file online using FileZilla, the logo does not get displayed but only the alt text is displayed. I have double checked the code and I am almost sure that my code is fine. Here it is,

  <h1 id="logo"><a href="index.html" title="Stop4Gifts"><img src="uploads/logo.png" alt="Stop4Gifts"/> </a></h1>

Please help me out. Thanks