For many images resized versions are not displayed. they are used in jury tool to rated the photographs of Wiki Loves Monuments
Example of error page
If you report this error to the Wikimedia System Administrators, please include the details below.
Request: GET http://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/%D0%9E%D0%B1%D0%BB%D0%B0%D1%81%D1%82_%D0%9A%D1%8A%D1%80%D0%B4%D0%B6%D0%B0%D0%BB%D0%B8_-_%D0%9E%D0%B1%D1%89%D0%B8%D0%BD%D0%B0_%D0%9A%D1%8A%D1%80%D0%B4%D0%B6%D0%B0%D0%BB%D0%B8_-_%D1%81._%D0%93%D0%BE%D1%80%D0%BD%D0%B0_%D0%BA%D1%80%D0%B5%D0%BF%D0%BE%D1%81%D1%82_-_%D0%90%D0%BD%D1%82%D0%B8%D1%87%D0%B5%D0%BD_%D0%B8_%D1%81%D1%80%D0%B5%D0%B4%D0%BD%D0%BE%D0%B2%D0%B5%D0%BA%D0%BE%D0%B2%D0%B5%D0%BD_%D0%B0%D1%80%D1%85%D0%B5%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%BA%D0%BE%D0%BC%D0%BF%D0%BB%D0%B5%D0%BA%D1%81_%D0%9F%D0%B5%D1%80%D0%BF%D0%B5%D1%80%D0%B8%D0%BA%D0%BE%D0%BD_-_%281%29.jpg/1280px-%D0%9E%D0%B1%D0%BB%D0%B0%D1%81%D1%82_%D0%9A%D1%8A%D1%80%D0%B4%D0%B6%D0%B0%D0%BB%D0%B8_-_%D0%9E%D0%B1%D1%89%D0%B8%D0%BD%D0%B0_%D0%9A%D1%8A%D1%80%D0%B4%D0%B6%D0%B0%D0%BB%D0%B8_-_%D1%81._%D0%93%D0%BE%D1%80%D0%BD%D0%B0_%D0%BA%D1%80%D0%B5%D0%BF%D0%BE%D1%81%D1%82_-_%D0%90%D0%BD%D1%82%D0%B8%D1%87%D0%B5%D0%BD_%D0%B8_%D1%81%D1%80%D0%B5%D0%B4%D0%BD%D0%BE%D0%B2%D0%B5%D0%BA%D0%BE%D0%B2%D0%B5%D0%BD_%D0%B0%D1%80%D1%85%D0%B5%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%BA%D0%BE%D0%BC%D0%BF%D0%BB%D0%B5%D0%BA%D1%81_%D0%9F%D0%B5%D1%80%D0%BF%D0%B5%D1%80%D0%B8%D0%BA%D0%BE%D0%BD_-_%281%29.jpg, from 10.20.0.181 via cp1099 cp1099 ([10.64.32.81]:3128), Varnish XID 2085267195
Forwarded for: 93.170.115.99, 10.20.0.173, 10.20.0.173, 10.20.0.181
Error: 503, Service Unavailable at Sun, 11 Oct 2015 15:31:30 GMT