So what is correct solution for this?

Install imagemagick first then fileinfo and finally install mbstring.

or

Just run: "sudo apt-get install autoconf" and that's it.

    aaP_hk2263247 same here! mi entire WP site crashed after updating a plugin which needs mbstring to work... so I am with the plugin disabled till someone could spot the problem. I can't install that extension un php83!

    PS. sudo apt-get install autoconf didn't solve that, as I already had it installed (Debian12)

      Hello, was the installation successful? Please check the installation log to see what went wrong. /tmp/panelExec.log

      fj39jsGNedid

      aaP_erikator imagemagick installed but fileinfo won't. while installing fileinfo, all the server down, even I can not login server via putty.

      @aaPanel_Kern there is a bug in php 8.3 install fileinfo extension, all server collapsed.

        aaPanel_Kern not possible, there is out of memory error only I can see in terminal window but no login screen, only errors in window.

        edit : server let me in now.

        aaPanel_Kern the server is now back to itself, I did not restart it, it fixed itself, but the fileinfo plugin is not installed. there must be a problem with the installing script of this plugin.

          Just running aapanel is enough, running other programs plus compilation and installation is not enough