Getting a 404 on my site from Sharexy

When running a speed test on my site, I am getting a constant 404 from the following:

URL: http://shuttle.sharexy.com/css/counter_right.png
Host: shuttle.sharexy.com
IP: 108.162.202.72
Location: United States
Error/Status Code: 404
Start Offset: 9.654 s
Time to First Byte: 208 ms
Content Download: 0 ms
Bytes In (downloaded): 0.9 KB
Bytes Out (uploaded): 0.4 KB


Can you please fix or tell me how I can fix this? Thanks!