Unable to login to Plesk UI: a blank screen is shown

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    Pier Paolo Ronzino

    I have the same problem but on Windows server

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    Pier Paolo Ronzino (Edited )

    Here is my last php error logs, controlpanel ones

    [2022-02-23 13:07:21] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:10:00] PHP Warning:  require(C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php): failed to open stream: No such file or directory in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:10:00] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:12:21] PHP Warning:  require(C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php): failed to open stream: No such file or directory in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:12:21] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:16:01] PHP Warning:  require(C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php): failed to open stream: No such file or directory in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:16:01] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:17:21] PHP Warning:  require(C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php): failed to open stream: No such file or directory in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:17:21] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:18:00] PHP Warning:  require(C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php): failed to open stream: No such file or directory in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70
    [2022-02-23 13:18:00] PHP Fatal error:  require(): Failed opening required 'C:\Program Files (x86)\Plesk\admin\plib\vendor\composer/../react/promise/src/functions_include.php' (include_path='C:\Program Files (x86)\Plesk\admin\plib\vendor/plesk/zf1/library;C:\Program Files (x86)\Plesk\admin\plib') in C:\Program Files (x86)\Plesk\admin\plib\vendor\composer\autoload_real.php on line 70

    And here is the code of autoload_real.php on line 70

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    Mark Bailly

    I tried the above and I am still unable to access the plesk login. When I run the ps command one PID is listed. But when I try to kill it, I am told that the PID does not exist. So I skip that step and move on to the restart commands. Is the task that is still running preventing me from probably restarting the Plesk server? Why can I not kill a PID that is clearly shown in the list?

    Thanks,

    Mark

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