Admin interface do not works anymore after ispconfig 3.15 upgrade

Hi to all,
I upgraded from ispconfig 3.11 to 3.15 and when I terminated the admin interface stop working. In the apache log I found this messages:

[fcgid:warn] [pid 1108] (104)Connection reset by peer: [client 10.1.28.228:56862] mod_fcgid: error reading data from FastCGI server
[core:error] [pid 1108] [client 10.1.28.228:56862] End of script output before headers: index.php

In my ispconfig-vhost config file I have this section:

<IfModule mod_fcgid.c>
DocumentRoot /var/www/ispconfig/
SuexecUserGroup ispconfig ispconfig
<Directory /var/www/ispconfig/>
Options -Indexes +FollowSymLinks +MultiViews +ExecCGI
AllowOverride AuthConfig Indexes Limit Options FileInfo
<FilesMatch "\.php$">
SetHandler fcgid-script
</FilesMatch>
FCGIWrapper /var/www/php-fcgi-scripts/ispconfig/.php-fcgi-starter .php
Require all granted
</Directory>
IPCCommTimeout 7200
MaxRequestLen 15728640
</IfModule>

I do not know how to poceed to fix it. does anyone can help me?
Execept the ispconfig admin interface seems that everything works fine on the server.

 

The SO is Debian 9 and I only run the update script from root, I do not know which version has been installed. But I remenber that the admin interface suggested me 3.15.

 

Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.33-0+deb9u8, Copyright (c) 1999-2017, by Zend Technologies

 

Just to understand. During the update process IspConfig asks if you want to do a Backup. In this backup is there the ispconfig apache config? If yes where can I find it?

 

No, didn't work for me, so I decided to upgrade PHP. Now I have PHP 7.4 installed and working: phpmyadmin works, roundcube works. The ispconfig is at the 3.2 version but the isp config interface do not works. I think that the problem is only a bad 000.ispconfig.vhost config file. Could you please copy here a standard version? How it should be for a debian 9, apache 2.4 and php7.4. Thanks a lot if anyone can help me.

 

Thanks to all,
Till I do not have any error in the /var/log/apache2/error.log file. When I connecto to the ISPCONFIG interface I see the PHP code like if the fast CGI or I do not know what is not workin. But everything on the server works correctly. Roundcube, phpmyadmin.... So I do not think that is a PHP config problem. I think that is something regarding the fast CGI ISPCONFIG VHOST config. But I can't find where is the error.
This is what I see when I connect to the ISPCONFIG login page:

uses('tpl'); $app->tpl->newTemplate('main.tpl.htm'); $app->tpl->setVar('startpage', isset($_SESSION['s']['module']['startpage']) ? $_SESSION['s']['module']['startpage'] : '', true); $app->tpl->setVar('logged_in', ($_SESSION['s']['user']['active'] != 1 ? 'n' : 'y')); // tab change warning? // read misc config $app->uses('getconf'); $sys_config = $app->getconf->get_global_config('misc'); if($sys_config['tab_change_warning'] == 'y') { $app->tpl->setVar('tabchange_warning_enabled', 'y'); $app->tpl->setVar('global_tabchange_warning_txt', $app->lng('global_tabchange_warning_txt')); } else { $app->tpl->setVar('tabchange_warning_enabled', 'n'); } $app->tpl->setVar('tabchange_discard_enabled', $sys_config['tab_change_discard']); if($sys_config['tab_change_discard'] == 'y') { $app->tpl->setVar('global_tabchange_discard_txt', $app->lng('global_tabchange_discard_txt')); } if($sys_config['use_loadindicator'] == 'y') { $app->tpl->setVar('use_loadindicator', 'y'); } if($sys_config['use_combobox'] == 'y') { $app->tpl->setVar('use_combobox', 'y'); } if(isset($_SESSION['show_info_msg'])) { $app->tpl->setVar('show_info_msg', $_SESSION['show_info_msg']); unset($_SESSION['show_info_msg']); } if(isset($_SESSION['show_error_msg'])) { $app->tpl->setVar('show_error_msg', $_SESSION['show_error_msg']);................................................................................

Thanks a lot for your help.
Kris
PS while I have the admin site down I need just to enlarge one mail space that is nerly out of space. Is possible to do it without the ISPCONFIG interface? For instance managing the database is anyway? Thanks a lot.

 

Thanks Jesse, I switched the default PHP version to 7.0 that is the default version for debian 9 and I verified that all php modules and other packages are installed. How could I reinstall ISPCONFIG without lose anything? It is a production server. Do I risk to loose the mail config, web config, roundcube and so on? Don't you think that an upgrade is better then install?

 

You are right Till. I just run the update as Th0m wrote:
ispconfig_update.sh --force
and followind the instruction at his page: https://www.howtoforge.com/updating-ispconfig-3-1-to-ispconfig-3-2/

After that I returned to my initial problem. In the apache2 error.log I find:
[fcgid:warn] [pid 32396] (104)Connection reset by peer: [client 10.1.28.228:47992] mod_fcgid: error reading data from FastCGI server
[core:error] [pid 32396] [client 10.1.28.228:47992] End of script output before headers: index.php

It is clear that is a FastCGI problem that I can't understand. But I ask you here because the interfare stop working just after the ispconfig upgrade. Before that upgrade it worked well.

 

Hi Th0m, the php-cgi was configurated on the wrong php version (7.4). I changed it to the right one (7.0). Now both of them are right. I restarted the apache server but the ispconfig control panel is still offline with the same error.

To solve my immediate problem (one full mailbox), I changed the quote value for the mailbox directly in the database, and it worked fine.
Now I have time to work on it without customer pressing