Plesk and websites show the following error:
503 Service Unavailable.
The following can be found in Event Viewer > System :
Application pool 'AppPoolName' is being automatically disabled due to a series of failures in the process(es) serving that application pool.
And the message with the following error code:
AppPool(name) terminated unexpectedly. (process ID). The process exit code was 0xc0000022
Application pools for these websites crashes only if Enable 32-Bit Applications in Advanced Settings is set as True
Incorrect system permissions.
Check permissions for
C:Program Files (x86)IIS directory:
Open Windows Explorer
C:Program Files (x86)IIS.
Right click on
Windowsfolder and go to Properties > Security
Check that Users (domainUsers) group exists with correct permissions like on the screenshot:
Also, check that there are no
If the issue persists, Use
Process Monitorutility with filter by
Permissions can be given to
psaadm, psaacln and psaaserv to the entire
C:Windows directory with the following commands:
C:> cacls C:Windows*.* /E /T /C /R “psacln”
cacls C:Windows*.* /E /T /C /R “psaadm”
cacls C:Windows*.* /E /T /C /R “psaserv”
C: with drive name in question.
Contact Plesk technical support if it did not help.