FastCGI Errors - Broken pipe / process slot

Hi,
I switched from PHP-FPM (php7.4) to FastCGI (php7.4) and now i have this errors below in my error.log file.
I also don't see any extra FastCGI settings in the ISPConfig panel like is had with PHP-FPM. Does anyone know how i can fix this?

 

How did you do that?
My opinion is PHP-FPM is better, but you may have good reasons to change.
No mention of OS and ISPConfig version. Start with this:
https://www.howtoforge.com/community/threads/please-read-before-posting.58408/

 

I switched to FastCGI because my Server Provider said they have seen better performance with FastCGI and i also noticed that the last PHP-FPM version was from 2011.

Expand: htf_report.txt

root@server1:~# cat htf_report.txt | more

##### SERVER #####
IP-address (as per hostname): ***.***.***.***
[WARN] could not determine server's ip address by ifconfig
[INFO] OS version is Debian GNU/Linux 9.13 (stretch)

[INFO] ISPConfig is installed.

##### ISPCONFIG #####
ISPConfig version is 3.1.15p3


##### VERSION CHECK #####

[INFO] php (cli) version is 7.4.11

##### PORT CHECK #####


##### MAIL SERVER CHECK #####


##### RUNNING SERVER PROCESSES #####

[INFO] I found the following web server(s):
Apache 2 (PID 26036)
[INFO] I found the following mail server(s):
Postfix (PID 1362)
[INFO] I found the following pop3 server(s):
Dovecot (PID 935)
[INFO] I found the following imap server(s):
Dovecot (PID 935)
[INFO] I found the following ftp server(s):
PureFTP (PID 1775)

##### LISTENING PORTS #####
(only ()
Local (Address)
[anywhere]:993 (935/dovecot)
[anywhere]:995 (935/dovecot)
[anywhere]:10022 (1138/./ts3server)
[localhost]:10023 (915/postgrey)
[localhost]:10024 (1663/amavisd-new)
[localhost]:10025 (1362/master)
[localhost]:10026 (1663/amavisd-new)
[localhost]:10027 (1362/master)
[anywhere]:587 (1362/master)
[localhost]:11211 (786/memcached)
[anywhere]:110 (935/dovecot)
[anywhere]:143 (935/dovecot)
[anywhere]:30033 (1138/./ts3server)
[anywhere]:465 (1362/master)
[anywhere]:21 (1775/pure-ftpd)
***.***.***.***:53 (810/named)
[localhost]:53 (810/named)
[anywhere]:22 (888/sshd)
[anywhere]:25 (1362/master)
[localhost]:953 (810/named)
[anywhere]:10011 (1138/./ts3server)
*:*:*:*::*:993 (935/dovecot)
*:*:*:*::*:995 (935/dovecot)
[localhost]0022 (1138/./ts3server)
*:*:*:*::*:10023 (915/postgrey)
*:*:*:*::*:10024 (1663/amavisd-new)
*:*:*:*::*:3306 (1010/mysqld)
*:*:*:*::*:10026 (1663/amavisd-new)
*:*:*:*::*:587 (1362/master)
[localhost]10 (935/dovecot)
[localhost]43 (935/dovecot)
*:*:*:*::*:80 (26036/apache2)
*:*:*:*::*:8080 (26036/apache2)
*:*:*:*::*:30033 (1138/./ts3server)
*:*:*:*::*:465 (1362/master)
*:*:*:*::*:8081 (26036/apache2)
*:*:*:*::*:21 (1775/pure-ftpd)
*:*:*:*::*:53 (810/named)
*:*:*:*::*:22 (888/sshd)
*:*:*:*::*:25 (1362/master)
*:*:*:*::*:953 (810/named)
[localhost]0011 (1138/./ts3server)
*:*:*:*::*:443 (26036/apache2)




##### IPTABLES #####
Chain INPUT (policy ACCEPT)
target prot opt source destination
f2b-postfix-sasl tcp -- [anywhere]/0 [anywhere]/0 multiport dports 25
f2b-dovecot tcp -- [anywhere]/0 [anywhere]/0 multiport dports 110,995,143,993,587,465,4190
f2b-pure-ftpd tcp -- [anywhere]/0 [anywhere]/0 multiport dports 21
f2b-sshd tcp -- [anywhere]/0 [anywhere]/0 multiport dports 22

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Chain f2b-dovecot (1 references)
target prot opt source destination
RETURN all -- [anywhere]/0 [anywhere]/0

Chain f2b-postfix-sasl (1 references)
target prot opt source destination
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
RETURN all -- [anywhere]/0 [anywhere]/0

Chain f2b-pure-ftpd (1 references)
target prot opt source destination
RETURN all -- [anywhere]/0 [anywhere]/0

Chain f2b-sshd (1 references)
target prot opt source destination
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
REJECT all -- ***.***.***.*** [anywhere]/0 reject-with icmp-port-unreachable
RETURN all -- [anywhere]/0 [anywhere]/0

 

I have used this guide to add the new PHP versions:
How to install PHP 5.6 and 7.0 - 7.4 as PHP-FPM & FastCGI for ISPConfig 3.1 with apt on Debian 8 to 10

 

From report_htf:

Code:

[INFO] OS version is Debian GNU/Linux 9.13 (stretch)
[INFO] php (cli) version is 7.4.11

That is not a supported configuration, on Debian 9 ISPConfig expects PHP 7.0. The combination you have now should not work.
Seems you have forgotten Chapter 9 in the additional PHP tutorial: https://www.howtoforge.com/tutorial...bian-default-php-back-to-the-original-version

 

I switched from "/usr/bin/php-cgi.default 100 auto mode" to "/usr/bin/php-cgi7.0 70 manual mode" but this errors still popping up in the "error.log" file.