/var/log/sw-cp-server/error_log
This is the error log
2022/03/10 19:51:19 [error] 50710#0: *872 open() "/opt/psa/admin/htdocs/remote/fgt_lang" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET ///remote/fgt_lang?lang=/../../../..//////////dev/ HTTP/1.0", host: "194.233.76.192"
2022/03/10 20:22:33 [error] 50710#0: *879 open() "/opt/psa/admin/htdocs/a2billing/customer/templates/default/footer.tpl" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET //a2billing/customer/templates/default/footer.tpl HTTP/1.0", host: "194.233.76.192"
2022/03/10 22:12:05 [error] 50710#0: *886 open() "/opt/psa/admin/htdocs/.env" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /.env HTTP/1.0", host: "194.233.76.192"
2022/03/11 02:26:44 [error] 50710#0: *905 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 127.0.0.1, server: , request: "POST /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php HTTP/1.0", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "194.233.76.192"
2022/03/11 03:23:03 [error] 50710#0: *916 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 127.0.0.1, server: , request: "GET /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php HTTP/1.0", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "194.233.76.192"
2022/03/11 04:41:59 [error] 50710#0: *920 open() "/opt/psa/admin/htdocs/.env" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /.env HTTP/1.0", host: "194.233.76.192"
2022/03/11 05:43:37 [error] 50710#0: *923 open() "/opt/psa/admin/htdocs/api" failed (2: No such file or directory), client: 167.94.138.117, server: , request: "GET /api HTTP/1.1", host: "194.233.76.192:8443"
2022/03/11 05:59:47 [error] 50710#0: *936 open() "/opt/psa/admin/htdocs/mifs/.;/services/LogService" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "POST /mifs/.;/services/LogService HTTP/1.0", host: "194.233.76.192", referrer: "
https://194.233.76.192:443"
2022/03/11 07:19:12 [error] 50710#0: *937 "/opt/psa/admin/htdocs/console/index.php" is not found (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /console/ HTTP/1.0", host: "194.233.76.192"
2022/03/11 07:57:46 [error] 50710#0: *944 open() "/opt/psa/admin/htdocs/.env" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /.env HTTP/1.0", host: "194.233.76.192"
2022/03/11 08:50:55 [error] 50710#0: *946 open() "/opt/psa/admin/htdocs/_ignition/execute-solution" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /_ignition/execute-solution HTTP/1.0", host: "194.233.76.192"
2022/03/11 12:21:01 [error] 50710#0: *985 open() "/opt/psa/admin/htdocs/ecp/Current/exporttool/microsoft.exchange.ediscovery.exporttool.application" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /ecp/Current/exporttool/microsoft.exchange.ediscovery.exporttool.application HTTP/1.0", host: "194.233.76.192"
2022/03/11 12:22:15 [error] 50710#0: *986 open() "/opt/psa/admin/htdocs/owa/auth/logon.aspx" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /owa/auth/logon.aspx?url=https%3a%2f%2f1%2fecp%2f HTTP/1.0", host: "194.233.76.192"
2022/03/11 12:42:29 [error] 50710#0: *987 open() "/opt/psa/admin/htdocs/Autodiscover/Autodiscover.xml" failed (2: No such file or directory), client: 45.146.165.37, server: , request: "POST /Autodiscover/Autodiscover.xml HTTP/1.1", host: "194.233.76.192:8443"
2022/03/11 13:26:31 [error] 50710#0: *1001 open() "/opt/psa/admin/htdocs/.env" failed (2: No such file or directory), client: 127.0.0.1, server: , request: "GET /.env HTTP/1.0", host: "194.233.76.192"
and the engine log
[10-Mar-2022 10:14:37] NOTICE: fpm is running, pid 39924
[10-Mar-2022 10:14:37] NOTICE: ready to handle connections
[10-Mar-2022 10:14:37] NOTICE: systemd monitor interval set to 10000ms
[10-Mar-2022 16:15:05] NOTICE: Terminating ...
[10-Mar-2022 16:15:05] NOTICE: exiting, bye-bye!
[10-Mar-2022 16:16:51] NOTICE: fpm is running, pid 55942
[10-Mar-2022 16:16:51] NOTICE: ready to handle connections
[10-Mar-2022 16:16:51] NOTICE: systemd monitor interval set to 10000ms
[10-Mar-2022 16:16:57] NOTICE: Terminating ...
[10-Mar-2022 16:16:57] NOTICE: exiting, bye-bye!
[10-Mar-2022 16:17:20] NOTICE: fpm is running, pid 56000
[10-Mar-2022 16:17:20] NOTICE: ready to handle connections
[10-Mar-2022 16:17:20] NOTICE: systemd monitor interval set to 10000ms
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It seems that it couldn't find files, i'm still in the dark