postfix dovecot using wrong certificate files

I just noticed the LE certificate postfix and dovecot use is not renewed. Host with Debian 12 and ISPConfig latest was installed 10th February, and the certificate created then expired today.
Host certificate is renewed, it still has 59 days left.
I think this is because host has website named hostname -f. That has not caused problems before on the old hosts, this new host must be somehow different. Actually, now I remember the old host used certbot, this has acme.sh.
Should I link the smtpd.{cert|key} files in /etc/postfix to the /root/.acme.sh/ ... files for the website? Going to URL hostname -f works with SSL, and browser shows certificate was renewed 10th April. Or someway other fix the links to point to correct certificate files?

 

There may be something else going on:

Code:

root@posti:/etc/postfix# ls -lh /usr/local/ispconfig/interface/ssl/
total 48K
drwxr-x--- 2 root      root      4.0K Feb 10 13:06 .
drwxr-x--- 9 ispconfig ispconfig 4.0K Dec 20 21:47 ..
-rwxr-x--- 1 root      root       768 Feb 10 13:07 dhparam4096.pem
-rwxr-x--- 1 root      root        45 Feb 10 13:07 empty.dir
-rwxr-x--- 1 root      root      3.9K Feb 10 13:06 ispserver.crt
-rwxr-x--- 1 root      root      2.0K Feb 10 13:06 ispserver.crt-20240210110647.bak
-rwxr-x--- 1 root      root      3.2K Feb 10 13:06 ispserver.key
-rwxr-x--- 1 root      root      3.2K Feb 10 13:06 ispserver.key-20240210110647.bak
-rwxr-x--- 1 root      root      7.1K Feb 10 13:06 ispserver.pem
-rwxr-x--- 1 root      root      5.2K Feb 10 13:06 ispserver.pem-20240210110647.bak
root@posti:/etc/postfix#

So those are not renewed.
I tried ispconfig_update.sh --force, and answered yes

Code:

Create new ISPConfig SSL certificate (yes,no) [no]: yes

Now I got new files there:

Code:

root@posti:~# ls -lh /usr/local/ispconfig/interface/ssl/
total 64K
drwxr-x--- 2 root      root      4.0K May 10 13:55 .
drwxr-x--- 9 ispconfig ispconfig 4.0K Dec 20 21:47 ..
-rwxr-x--- 1 root      root       768 May 10 13:55 dhparam4096.pem
-rwxr-x--- 1 root      root        45 May 10 13:55 empty.dir
-rwxr-x--- 1 root      root      3.9K May 10 13:55 ispserver.crt
-rwxr-x--- 1 root      root      2.0K Feb 10 13:06 ispserver.crt-20240210110647.bak
-rwxr-x--- 1 root      root      3.9K May 10 13:55 ispserver.crt-20240510105502.bak
-rwxr-x--- 1 root      root      3.2K May 10 13:55 ispserver.key
-rwxr-x--- 1 root      root      3.2K Feb 10 13:06 ispserver.key-20240210110647.bak
-rwxr-x--- 1 root      root      3.2K May 10 13:55 ispserver.key-20240510105502.bak
-rwxr-x--- 1 root      root      7.1K May 10 13:55 ispserver.pem
-rwxr-x--- 1 root      root      5.2K Feb 10 13:06 ispserver.pem-20240210110647.bak
-rwxr-x--- 1 root      root      7.1K May 10 13:55 ispserver.pem-20240510105502.bak
root@posti:~#

Now postfix and dovecot use this new certificate.
What is misconfigured since cert is not renewed automatically?