php FPM service error

Hello,
Overnight, after a restart the server shows me "bad gateway" on the CWP connection panel
By searching and cross-referencing with other topics already present in the forum, I therefore found an error on the CWP phpfpm
Indeed when I search

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systemctl status cwp-phpfpm
Unit cwp-phpfpm.service could not be found.
and when i type

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tail /usr/local/cwp/php71/var/log/php-fpm.log
[19-Sep-2022 18:49:37] WARNING: [pool cwpsrv] child 27450 said into stderr: "NOTICE: PHP message: PHP Notice:  Undefined offset: 3 in /usr/local/cwpsrv/htdocs/resources/admin/addons/ajax/ajax_dashboard.php on line 0"
[19-Sep-2022 18:49:41] WARNING: [pool cwpsrv] child 27168 said into stderr: "sed: couldn't write 75 items to stdout: Broken pipe"
[19-Sep-2022 18:49:49] WARNING: [pool cwpsrv] child 28384, script '/usr/local/cwpsrv/htdocs/admin/admin/index.php' (request: "POST /admin/index.php?module=reboot_srv") executing too slow (5.513895 sec), logging
[19-Sep-2022 18:49:49] NOTICE: child 28384 stopped for tracing
[19-Sep-2022 18:49:49] NOTICE: about to trace 28384
[19-Sep-2022 18:49:49] NOTICE: finished trace of 28384
[19-Sep-2022 18:49:56] NOTICE: Terminating ...
[19-Sep-2022 18:49:56] NOTICE: exiting, bye-bye!
[19-Sep-2022 18:49:56] NOTICE: Terminating ...
[19-Sep-2022 18:49:56] NOTICE: exiting, bye-bye!
Is there a solution maybe to completely reinstall phpfpm for cwp? If the problem comes from this side?
Thanks in advance for future help.