Software: Apache. PHP/5.5.15 

uname -a: Windows NT SVR-DMZ 6.1 build 7600 (Windows Server 2008 R2 Enterprise Edition) i586 

SYSTEM 

Safe-mode: OFF (not secure)

E:\nuevo\apache\logs\   drwxrwxrwx
Free 9.41 GB of 239.26 GB (3.93%)
Detected drives: [ a ] [ c ] [ d ] [ e ] [ f ]
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Viewing file:     error.2021.05.30.log (2.06 KB)      -rw-rw-rw-

[Sun May 30 01:04:53.675418 2021] [proxy:error] [pid 3112:tid 21072] (OS 10060)A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.  : AH00957: HTTP: attempt to connect to 172.22.1.51:8399 (172.22.1.51) failed
[Sun May 30 01:04:53.675418 2021] [proxy:error] [pid 3112:tid 21072] AH00959: ap_proxy_connect_backend disabling worker for (172.22.1.51) for 60s
[Sun May 30 01:04:53.675418 2021] [proxy_http:error] [pid 3112:tid 21072] [client 152.61.128.50:48214] AH01114: HTTP: failed to make connection to backend: 172.22.1.51
[Sun May 30 01:04:53.909418 2021] [proxy:error] [pid 3112:tid 21072] AH00940: HTTP: disabled connection for (172.22.1.51)
[Sun May 30 01:04:54.143419 2021] [proxy:error] [pid 3112:tid 21072] AH00940: HTTP: disabled connection for (172.22.1.51)
[Sun May 30 01:06:43.483412 2021] [proxy:error] [pid 3112:tid 20116] (OS 10060)A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.  : AH00957: HTTP: attempt to connect to 172.22.1.51:8399 (172.22.1.51) failed
[Sun May 30 01:06:43.483412 2021] [proxy:error] [pid 3112:tid 20116] AH00959: ap_proxy_connect_backend disabling worker for (172.22.1.51) for 60s
[Sun May 30 01:06:43.483412 2021] [proxy_http:error] [pid 3112:tid 20116] [client 152.61.192.232:41481] AH01114: HTTP: failed to make connection to backend: 172.22.1.51
[Sun May 30 01:06:43.748612 2021] [proxy:error] [pid 3112:tid 20116] AH00940: HTTP: disabled connection for (172.22.1.51)
[Sun May 30 01:06:43.998213 2021] [proxy:error] [pid 3112:tid 20116] AH00940: HTTP: disabled connection for (172.22.1.51)
[Sun May 30 05:16:58.710059 2021] [core:error] [pid 3112:tid 19184] [client 141.98.83.139:56430] AH00126: Invalid URI in request t3 12.2.1
[Sun May 30 08:07:41.402891 2021] [cgi:error] [pid 3112:tid 21072] [client 42.236.145.83:19961] script not found or unable to stat: E:/nuevo/htdocs/setup.cgi