No [File does not exist] in Apache 2.4.10 error.log

[aeolus]

OS:Debian Jessie -- Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u4 (2015-09-19) x86_64 GNU/Linux

Apache version 2.4.10

IF i test the link http://localhost/123456789 , I can't find the message in /var/log/apache2/error.log

like :

[Tue Sep 22 23:30:34 2015] [error] [client 192.168.10.177] File does not exist: /var/www/html/123456789

But there's a message in /var/log/apache2/access.log

192.168.10.177 - - [22/Sep/2015:23:36:06 +0800] "GET /123456789 HTTP/1.1" 404 504 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0"

These are all /var/log/apache2/error.log

[Tue Sep 22 22:29:49.170568 2015] [mpm_event:notice] [pid 17018:tid 140580212959104] AH00489: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:29:49.170773 2015] [core:notice] [pid 17018:tid 140580212959104] AH00094: Command line: '/usr/sbin/apache2'
[Tue Sep 22 22:30:13.172336 2015] [mpm_event:notice] [pid 17018:tid 140580212959104] AH00493: SIGUSR1 received. Doing graceful restart
[Tue Sep 22 22:30:13.178573 2015] [mpm_event:notice] [pid 17018:tid 140580212959104] AH00489: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:30:13.178600 2015] [core:notice] [pid 17018:tid 140580212959104] AH00094: Command line: '/usr/sbin/apache2'
[Tue Sep 22 22:30:18.315636 2015] [mpm_event:notice] [pid 17018:tid 140580212959104] AH00491: caught SIGTERM, shutting down
[Tue Sep 22 22:30:19.396012 2015] [mpm_prefork:notice] [pid 19092] AH00163: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:30:19.396214 2015] [core:notice] [pid 19092] AH00094: Command line: '/usr/sbin/apache2'
[Tue Sep 22 22:30:20.794067 2015] [mpm_prefork:notice] [pid 19092] AH00169: caught SIGTERM, shutting down
[Tue Sep 22 22:30:21.939981 2015] [mpm_prefork:notice] [pid 19191] AH00163: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:30:21.940079 2015] [core:notice] [pid 19191] AH00094: Command line: '/usr/sbin/apache2'
[Tue Sep 22 22:30:45.715275 2015] [mpm_prefork:notice] [pid 19191] AH00171: Graceful restart requested, doing restart
[Tue Sep 22 22:30:45.926576 2015] [mpm_prefork:notice] [pid 19191] AH00163: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:30:45.926601 2015] [core:notice] [pid 19191] AH00094: Command line: '/usr/sbin/apache2'
[Tue Sep 22 22:30:45.992404 2015] [mpm_prefork:notice] [pid 19191] AH00171: Graceful restart requested, doing restart
[Tue Sep 22 22:30:46.084399 2015] [mpm_prefork:notice] [pid 19191] AH00163: Apache/2.4.10 (Debian) configured -- resuming normal operations
[Tue Sep 22 22:30:46.084437 2015] [core:notice] [pid 19191] AH00094: Command line: '/usr/sbin/apache2'

How to check & fixed?
Thanks.