migrating my Debian 11 Linux system to version 12 (Bookworm), my ISPConfig setup has been experienci

Discussion in 'ISPConfig 3 Priority Support' started by virk6, Jun 19, 2026 at 4:22 PM.

  1. virk6

    virk6 Member HowtoForge Supporter

    Hello,

    Since migrating my Debian 11 Linux system to version 12 (Bookworm), my ISPConfig setup has been experiencing some issues—specifically with the webmail system.
    Postfix and Dovecot are working fine, but I am unable to access my email via: https://xx.xx.xx.xx:8081/squirrelmail/
    Here is the displayed message:

    Oops... something went wrong!
    An internal error has occurred. Your request cannot be processed at this time.
    For administrators: Please check the application and/or server error logs for more information.

    What could be causing this type of message? There is no information in the log files (nginx, ISPConfig, syslog)...
     
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    There should be an error in the global nginx error.log or access.log. Probably an incompatibility of the webmail client with the new PHP version. Do you still use SquirrelMail, or do you use RoundCube but under SquirrelMail Alias?
     
  3. virk6

    virk6 Member HowtoForge Supporter

    Yes i am still using SquirrelMail like before with debian 11
    I have on my server diferents PHP versions from PHP7.4 TO PHP 8.4.
     
  4. virk6

    virk6 Member HowtoForge Supporter

    I found these massage in /var/log/ispconfig/update.log
    i am running nginx not apache


    Sat Jun 13 10:53:01 AM CEST 2026 - [ISPConfig] - Could not check apache version, apachectl not found.
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3600: EXECUTED: cp -rf ../interface /usr/local/ispconfig
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3604: EXECUTED: cp -rf ../server /usr/local/ispconfig
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3611: EXECUTED: cp -rf ../security /usr/local/ispconfig
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3765: EXECUTED: chown root:root /usr/local/ispconfig
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3767: EXECUTED: chmod 755 /usr/local/ispconfig
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3771: EXECUTED: chmod -R 750 /usr/local/ispconfig/extensions /usr/local/ispconfig/interface /usr/local/ispconfig/security /usr/local/ispconfig/server
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3775: EXECUTED: chown -R ispconfig:ispconfig /usr/local/ispconfig/interface
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3779: EXECUTED: chown ispconfig:ispconfig /usr/local/ispconfig/extensions
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3783: EXECUTED: chmod -R 755 /usr/local/ispconfig/interface/acme
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3787: EXECUTED: chown -R root:root /usr/local/ispconfig/server
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3791: EXECUTED: chown -R root:root /usr/local/ispconfig/security
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3795: EXECUTED: chown root:ispconfig /usr/local/ispconfig/security/security_settings.ini
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3797: EXECUTED: chown root:ispconfig /usr/local/ispconfig/security
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3799: EXECUTED: chown root:ispconfig /usr/local/ispconfig/security/ids.whitelist
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] -
    Sat Jun 13 10:53:02 AM CEST 2026 - [ISPConfig] - /tmp/update_runner.sh.WIBGmSj5Ce/install/lib/installer_base.lib.php, Line 3894: EXECUTED: chmod +x /usr/local/ispconfig/server/scripts/create_daily_nginx_access_logs.sh /usr/local/ispconfig/server/scripts/create_jailkit_chroot.sh /usr/local/ispconfig/server/scripts/create_jailkit_programs.sh /usr/local/ispconfig/server/scripts/create_jailkit_user.sh /usr/local/ispconfig/server/scripts/generate_autoinstall_conf.sh /usr/local/ispconfig/server/scripts/ispconfig_update.sh /usr/local/ispconfig/server/scripts/letsencrypt_post_hook.sh /usr/local/ispconfig/server/scripts/letsencrypt_pre_hook.sh /usr/local/ispconfig/server/scripts/letsencrypt_renew_hook.sh /usr/local/ispconfig/server/scripts/run-getmail.sh /usr/local/ispconfig/server/scripts/update_from_dev.sh /usr/local/ispconfig/server/scripts/update_from_dev_stable.sh /usr/local/ispconfig/server/scripts/update_from_svn.sh /usr/local/ispconfig/server/scripts/update_runner.sh /usr/local/ispconfig/server/scripts/update_stable.sh
    ro
     
  5. till

    till Super Moderator Staff Member ISPConfig Developer

    Squirrelmail is not available anymore in Debian 12, its too outdated. I guess you will have to switch to a different webmail client, e.g. Roundcube.
     
  6. till

    till Super Moderator Staff Member ISPConfig Developer

    Could not find Apache version actually means you're running Nginx; that's why it says it's not found. Also, this is not the Nginx error.log, so not related to your problem anyway.
     
  7. virk6

    virk6 Member HowtoForge Supporter

    Thank you for your reply.
    If it is true that SquirrelMail is no longer suitable for Debian 12, which compatible version would you recommend installing—ideally a simple setup—to avoid breaking the existing system? Roundcube, or something else compatible with Debian 12?
     
  8. till

    till Super Moderator Staff Member ISPConfig Developer

    I would install RoundCube, as that's what recent ISPConfig systems use.
     
  9. virk6

    virk6 Member HowtoForge Supporter

    Ok thanks you;
    I would install RoundCube and let you know if there is anay issue
     

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