OPenwrt系统日志问题

太难***

今天凌晨突然断网，打10000号自动重置了后台，重启路由后网络恢复正常了。找到系统日志有错误，上来请教下大佬们这是什么问题呀
ed Aug 12 10:00:24 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:24 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:00:25 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 6/0 在 60 秒后重试
Wed Aug 12 10:00:26 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:27 2020 authpriv.warn dropbear[11771]: Login attempt for nonexistent user
Wed Aug 12 10:00:28 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:29 2020 authpriv.info dropbear[11771]: Exit before auth from <46.21.249.141:56408>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:29 2020 authpriv.info dropbear[13158]: Child connection from 46.21.249.141:46490
Wed Aug 12 10:00:30 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:31 2020 authpriv.warn dropbear[13158]: Login attempt for nonexistent user
Wed Aug 12 10:00:32 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:32 2020 authpriv.info dropbear[13158]: Exit before auth from <46.21.249.141:46490>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:33 2020 authpriv.info dropbear[13277]: Child connection from 46.21.249.141:56044
Wed Aug 12 10:00:34 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:35 2020 authpriv.warn dropbear[13277]: Login attempt for nonexistent user
Wed Aug 12 10:00:36 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:36 2020 authpriv.info dropbear[13277]: Exit before auth from <46.21.249.141:56044>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:38 2020 authpriv.info dropbear[13409]: Child connection from 46.21.249.141:36360
Wed Aug 12 10:00:38 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:39 2020 authpriv.warn dropbear[13409]: Login attempt for nonexistent user
Wed Aug 12 10:00:40 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:41 2020 authpriv.info dropbear[13409]: Exit before auth from <46.21.249.141:36360>: Disconnect received
Wed Aug 12 10:00:41 2020 authpriv.info dropbear[13431]: Child connection from 46.21.249.141:46154
Wed Aug 12 10:00:41 2020 authpriv.info dropbear[13440]: Child connection from 85.209.0.101:34522
Wed Aug 12 10:00:42 2020 authpriv.info dropbear[13442]: Child connection from 85.209.0.101:24778
Wed Aug 12 10:00:42 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:42 2020 authpriv.info dropbear[13440]: Exit before auth from <85.209.0.101:34522>: Exited normally
Wed Aug 12 10:00:43 2020 authpriv.info dropbear[13542]: Child connection from 85.209.0.101:24286
Wed Aug 12 10:00:43 2020 authpriv.warn dropbear[13442]: Bad password attempt for 'root' from 85.209.0.101:24778
Wed Aug 12 10:00:43 2020 authpriv.warn dropbear[13431]: Login attempt for nonexistent user
Wed Aug 12 10:00:44 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:44 2020 authpriv.info dropbear[13442]: Exit before auth from <85.209.0.101:24778>: (user 'root', 1 fails): Exited normally
Wed Aug 12 10:00:44 2020 authpriv.warn dropbear[13542]: Bad password attempt for 'root' from 85.209.0.101:24286
Wed Aug 12 10:00:45 2020 authpriv.info dropbear[13431]: Exit before auth from <46.21.249.141:46154>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:45 2020 authpriv.info dropbear[13558]: Child connection from 46.21.249.141:56714
Wed Aug 12 10:00:46 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:47 2020 authpriv.warn dropbear[13558]: Login attempt for nonexistent user
Wed Aug 12 10:00:47 2020 authpriv.info dropbear[13542]: Exit before auth from <85.209.0.101:24286>: (user 'root', 1 fails): Exited normally
Wed Aug 12 10:00:48 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:48 2020 authpriv.info dropbear[13558]: Exit before auth from <46.21.249.141:56714>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:49 2020 authpriv.info dropbear[13683]: Child connection from 46.21.249.141:36524
Wed Aug 12 10:00:50 2020 daemon.err netdata[10917]: PROCFILE: Cannot open file '/proc/sysvipc/shm'
Wed Aug 12 10:00:50 2020 authpriv.warn dropbear[13683]: Login attempt for nonexistent user
Wed Aug 12 10:00:52 2020 authpriv.info dropbear[13683]: Exit before auth from <46.21.249.141:36524>: Max auth tries reached - user 'is invalid'
Wed Aug 12 10:00:54 2020 authpriv.info dropbear[13811]: Child connection from 46.21.249.141:45290
Wed Aug 12 10:01:19 2020 authpriv.info dropbear[13811]: Exit before auth from <46.21.249.141:45290>: Exited normally
Wed Aug 12 10:01:25 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:01:26 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 7/0 在 60 秒后重试
Wed Aug 12 10:02:27 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:02:27 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 8/0 在 60 秒后重试
Wed Aug 12 10:03:28 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:03:28 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 9/0 在 60 秒后重试
Wed Aug 12 10:03:47 2020 authpriv.info dropbear[22054]: Child connection from 87.251.74.30:56148
Wed Aug 12 10:03:47 2020 authpriv.info dropbear[22059]: Child connection from 87.251.74.30:58044
Wed Aug 12 10:03:47 2020 authpriv.info dropbear[22060]: Child connection from 87.251.74.30:58042
Wed Aug 12 10:03:48 2020 authpriv.info dropbear[22054]: Exit before auth from <87.251.74.30:56148>: Exited normally
Wed Aug 12 10:03:48 2020 authpriv.warn dropbear[22059]: Login attempt for nonexistent user
Wed Aug 12 10:03:49 2020 authpriv.warn dropbear[22060]: Login attempt for nonexistent user
Wed Aug 12 10:03:49 2020 authpriv.info dropbear[22076]: Child connection from 87.251.74.30:35898
Wed Aug 12 10:03:49 2020 authpriv.info dropbear[22059]: Exit before auth from <87.251.74.30:58044>: Exited normally
Wed Aug 12 10:03:50 2020 authpriv.warn dropbear[22076]: Login attempt for nonexistent user
Wed Aug 12 10:03:51 2020 authpriv.info dropbear[22076]: Exit before auth from <87.251.74.30:35898>: Exited normally
Wed Aug 12 10:03:53 2020 authpriv.info dropbear[22060]: Exit before auth from <87.251.74.30:58042>: Exited normally
Wed Aug 12 10:04:04 2020 daemon.info dnscrypt-proxy[3789]: dnscrypt-proxy Refetching server certificates
Wed Aug 12 10:04:19 2020 daemon.err dnscrypt-proxy[3789]: dnscrypt-proxy Unable to retrieve server certificates
Wed Aug 12 10:04:29 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:04:29 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 10/0 在 60 秒后重试
Wed Aug 12 10:05:30 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:05:30 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 11/0 在 60 秒后重试
Wed Aug 12 10:06:31 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:06:31 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 12/0 在 60 秒后重试
Wed Aug 12 10:07:32 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:07:32 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 13/0 在 60 秒后重试
Wed Aug 12 10:08:33 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:08:33 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 14/0 在 60 秒后重试
Wed Aug 12 10:09:00 2020 authpriv.info dropbear[4103]: Child connection from 87.251.74.6:47566
Wed Aug 12 10:09:00 2020 authpriv.info dropbear[4103]: Exit before auth from <87.251.74.6:47566>: Exited normally
Wed Aug 12 10:09:00 2020 authpriv.info dropbear[4105]: Child connection from 87.251.74.6:30194
Wed Aug 12 10:09:00 2020 authpriv.info dropbear[4104]: Child connection from 87.251.74.6:30196
Wed Aug 12 10:09:01 2020 authpriv.warn dropbear[4104]: Login attempt for nonexistent user
Wed Aug 12 10:09:01 2020 authpriv.warn dropbear[4105]: Bad password attempt for 'root' from 87.251.74.6:30194
Wed Aug 12 10:09:02 2020 authpriv.info dropbear[4104]: Exit before auth from <87.251.74.6:30196>: Exited normally
Wed Aug 12 10:09:02 2020 authpriv.info dropbear[4105]: Exit before auth from <87.251.74.6:30194>: (user 'root', 1 fails): Exited normally
Wed Aug 12 10:09:04 2020 authpriv.info dropbear[4174]: Child connection from 87.251.74.6:45730
Wed Aug 12 10:09:08 2020 authpriv.warn dropbear[4174]: Login attempt for nonexistent user
Wed Aug 12 10:09:09 2020 authpriv.info dropbear[4174]: Exit before auth from <87.251.74.6:45730>: Exited normally
Wed Aug 12 10:09:19 2020 daemon.info dnscrypt-proxy[3789]: dnscrypt-proxy Refetching server certificates
Wed Aug 12 10:09:34 2020 user.err ddns-scripts[22221]: online: wget 错误代码: '8'
Wed Aug 12 10:09:34 2020 user.warn ddns-scripts[22221]: online: 传输失败 - 15/0 在 60 秒后重试
Wed Aug 12 10:09:34 2020 daemon.err dnscrypt-proxy[3789]: dnscrypt-proxy Unable to retrieve server certificates
Wed Aug 12 10:09:43 2020 daemon.err uhttpd[4230]: cat: write error: Broken pipe