请大家帮我看下我的apache日志

一下是我的linux centos4.2系统的apache下error.log的日志每天都有好多条同样的错误
[Fri Jun 15 10:35:10 2007] [error] [client 192.168.10.252] [Fri Jun 15 10:35:10 2007] index.pl: Malformed UTF-8 character (unexpected non-continuation byte 0xea, immediately after start byte 0xe9) in substitution (s///) at /opt/otrs/bin/cgi-bin/../../Kernel/Output/HTML/Generic.pm line 1249., referer: http://192.168.10.100/otrs/index ... amp;TicketID=223331
[Fri Jun 15 10:35:10 2007] [error] [client 192.168.10.252] [Fri Jun 15 10:35:10 2007] index.pl: Malformed UTF-8 character (unexpected non-continuation byte 0xea, immediately after start byte 0xe9) in substitution (s///) at /opt/otrs/bin/cgi-bin/../../Kernel/Output/HTML/Generic.pm line 1249., referer: http://192.168.10.100/otrs/index ... amp;TicketID=223331
[Mon Jun 18 10:02:12 2007] [error] [client 192.168.10.252] [Mon Jun 18 10:02:12 2007] index.pl: Malformed UTF-8 character (unexpected non-continuation byte 0xf4, immediately after start byte 0xdf) in substitution (s///) at /opt/otrs/bin/cgi-bin/../../Kernel/Output/HTML/Generic.pm line 1249., referer: http://192.168.10.100/otrs/index ... amp;TicketID=223601
[Mon Jun 18 21:04:19 2007] [error] [client 192.168.10.252] [Mon Jun 18 21:04:19 2007] index.pl: Malformed UTF-8 character (unexpected non-continuation byte 0xdf, immediately after start byte 0xe5) in substitution iterator at /opt/otrs/bin/cgi-bin/../../Kernel/Output/HTML/Generic.pm line 1251., referer: http://192.168.10.100/otrs/index ... amp;TicketID=223741

大家要是有时间就帮解答下我的问提，谢谢！

http://hi.baidu.com/zhuominglian ... 8b983fb1351dca.html

谢谢版主的解答，但是我看了还是不太懂啊！说的有点太专业了，版主能否说解释一下？

如果没有影响你的使用，你可以不管它。

谢谢 斑竹的解答！
目前到不影响我的使用，但是看到不舒服。