Symptoms
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Plesk might be inaccessible with a 500 error message.
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The following errors might be found in
%plesk_dir%adminlogsphp_error.log
:PHP Fatal error: Uncaught Error: Class 'Zend_Log' not found in C:Program Files (x86)ParallelsPleskadminplibPleskLog.php:169
ERR [panel] PleskComponentNotInstalledException: The component was not installedfile: C:Program Files (x86)PleskadminapplicationadmincontrollersWebAppFirewallController.php
line: 36
code: 0
trace: #0 C:Program Files (x86)Pleskadminplibvendorpleskzf1libraryZendControllerAction.php(133): Admin_WebAppFirewallController->init()
...
#5 C:Program Files (x86)Pleskadminhtdocsapplication.php(15): PleskApplication_Web->run()
ERR [panel.ui] The component was not installed -
Plesk upgrade or update fails with one of the following errors:
Unable to set the object (C:Program Files (x86)ParallelsPleskadmin****) owner: (5) Access is denied.
Unable to set the object (C:Program Files (x86)ParallelsPleskadmin****) owner: (2) The system cannot find the file specified.
MSI: Error! Critical action 'Configure Plesk site...' failed:
Access is denied. (Error code 5) at Unable to duplicate handle stdin
Failed to install 'C:ParallelsInstallerparallelsPANEL-WIN_17.8.11dist-windowsplesk-site_mu004.msi': Fatal error during installation. (Error code 1603)
Upgrading Let's Encrypt extension... Package action: Execute, package: ext-letsencrypt, exec time: 3 sec. desc: "program='[PLESK_INSTALLDIR]binextension.exe'," "command-line='--upgrade-url" "https://ext.plesk.com/packages/f6847e61-33a7-4104-8dc9-d26a0183a8dd-letsencrypt/download?2.8.0-518'," "working-dir=''," "context=''," "arch=''", output=' STDERR:filemng failed: plesk_exec_with_response(C:ParallelsPleskadminbinfilemng root file_exists C:ParallelsPlesktmpmodF973.tmp) failed: Unable to execute plesk_exec_with_response: Unable to start (C:ParallelsPleskadminbinfilemng root file_exists C:ParallelsPlesktmpmodF973.tmp) at Plesk impersonation(PipeServer::ServerThread::simpleRunAs line 687) at (zif_plesk_exec_with_response line 1135)
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ModSecurity might not appear in Tools & Settings and when reinstalling shows the following error messages appear in
%plesk_dir%adminlogsplesklog_debug.log
:Error: Unable to set the object (C:) owner: (5) Access is denied.
at execute console command --set-security(vconsoleapp::start line 93)
at execute "C:Program Files (x86)Pleskadminbinmodsecuritymng.exe" --set-security(vconsoleapp::run line 110) - Cannot access Domains > example.com > File Manager:
external error: Unable to find the directory E:vhostsexample.com: filemng failed: Unable to execute plesk_exec_with_response: Unable to start ("C:Program Files (x86)ParallelsPleskadminbinfilemng.exe" example.com list dirs E:vhostsexample.com)<br> at Plesk impersonation(PipeServer::ServerThread::runAs line 752)<br> at (zif_plesk_exec_with_response line 1204)
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Cannot create new domain or export a database dump in Domains > example.com > Databases >
DBNAME
> Export Dump:Error: External exception. Unable to encrypt data: Access is denied. (Error code 5) at RegCreateKeyEx subKey=SOFTWAREPleskPSA ConfigConfigsym_key
Error: Access is denied. (Error code 5) at Unable to remove path (C:Program Files (x86)Plesktmp{eaef31a5-53c9-11eb-8928-0cc47ae16d6f}) at (RunTime::File::remove line 1473) at execute "C:Program Files (x86)Pleskadminbinfilemng" test rm "C:Program Files (x86)Plesktmp{eaef31a5-53c9-11eb-8928-0cc47ae16d6f}"(RunTime::RunAsUser::run line 214) (Error code 1)
Cause
Antivirus software is blocking access to Plesk files/services during an update/upgrade or component installation.
Resolution
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Connect to the…