error in http log

[rdemaria]

Missing figures pollute httpd/error.log

[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASDaysBronze-e.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362
[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASTopBronze-down.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362
[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASCreditEmerald-Tile.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362
[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASDaysRuby-numu.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362
[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASCreditSilver-Pixel.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362
[Mon Jul 24 00:19:23 2017] [error] [client 173.209.105.60] File does not exist: /data/boinc/project/sixtrack/html/user/img/ATLASTopGold-strange.png, referer: http://lhcathomeclassic.cern.ch/sixtrack/forum_thread.php?id=4362