Symptoms
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Plesk is not accessible with one of the errors below:
500 external Error
Fatal error: Class 'CommonPanel_Config_Defaults' not found in C:Program Files (x86)ParallelsPleskadminplibPleskConfig.php on line 14
Fatal error: Class 'CommonPanel_Config_Defaults' not found in C:Program Files (x86)ParallelsPleskadminplibPleskConfig.php on line 14ERROR: Cannot redeclare ClueStreamFilterappend() (previously declared in C:Program Files (x86)Pleskadminplibvendorcluestream-filtersrcfunctions.php:17) (functions.php:27)
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Plesk may show just an empty page.
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The following errors on attempt to execute
plesk login
command:C:> plesk login
exit status 255 -
Errors in Event Viewer:
Execute plesksrvstartuphandler.exe C:Program Files "(x86)Pleskadminbinplesksrv.exe" failed with error code 255:
at (execPleskUtil line 106)
at Execute C:Program Files (x86)Pleskadminbinplesksrvstartuphandler.exe C:Program Files "(x86)Pleskadminbinplesksrv.exe"(execPleskUtil line 111)
at Call startup handler(plesksrv::StartupHandlerThread::runProc line 495)
Execute file name: C:Program Files (x86)Pleskadminbinplesksrv.exe -
One of the errors below is observed in
%plesk_dir%adminlogphp_error.log
PHP Parse error: syntax error, unexpected 'KŒûØ·' (T_STRING) in C:Program Files (x86)Pleskadminplibapi-commoncu.php on line 70
PHP Parse error: syntax error, unexpected '!' in C:Program Files (x86)Pleskadminplibapi-cliCliUtilityRunner.php on line 36PHP Fatal error: require(): Failed opening required 'C:Program Files (x86)Pleskadminplibvendorcomposer/../react/promise/src/functions_include.php' (include_path='C:Program Files (x86)Pleskadminplibvendor/plesk/zf1/library;C:Program Files (x86)Pleskadminplib') in C:Program Files (x86)Pleskadminplibvendorcomposerautoload_real.php on line 70
ERROR: Cannot redeclare ClueStreamFilterappend() (previously declared in C:Program Files (x86)Pleskadminplibvendorcluestream-filtersrcfunctions.php:17) (functions.php:27)
Cause
Corrupted PHP library files in subfolders of C:Program Files (x86)Pleskadmin folder.
Resolution
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Connect to the server via RDP
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Remove and replace the following folders from test server:
C:Program Files (x86)Pleskadminhtdocs
C:Program Files (x86)Pleskadminbin
C:Program Files (x86)Pleskadminplib -
Restart Plesk services How to restart the Plesk service
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Restart IIS using the following command in a command prompt:
C:> iisreset /restart