Blank screen in web browser trying to access ISPConfig dashboar after upgrade OS from 20.04 to 22.04

Discussion in 'ISPConfig 3 Priority Support' started by Galopete, Jul 5, 2025.

  1. Galopete

    Galopete Member HowtoForge Supporter

    Hi all,
    I have an issue with the ISP Config dashboard, i cannot reach it with the browser (blank screen), after upgrade my OS from Ubuntu 20.04 to 22.04.
    I'm using php 8.2 as a default, (in Ubuntu 20.04 too, and the dashboard was working fine...).
    I had made the upgrade following the Howtoforge guides, and all was fine without any error.
    All the services are working fine but the ISPConfig dashboard.
    This is my apache error log:
    Any idea whats wrong after my upgrade process?
    Many thanks,
    Abraham.
     
    Galopete, Jul 5, 2025
    #1
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    It seems that the upgrade has uninstalled the PHP mbstring extension, or you did not install it after the upgrade for the new PHP version you are now using.
     
    till, Jul 5, 2025
    #2
  3. Galopete

    Galopete Member HowtoForge Supporter

    You are right, Till!.
    I don't understand, because I already had “php8.2-mbstring” installed and the dashboard didn't work, but I didn't have “php-mbstring” installed.... As soon as I have installed the “php-mbstring” the dashboard works again perfectly.
    Thank you very much for your help, Till.
    Abraham
     
    Galopete, Jul 5, 2025
    #3

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