Unable to access Plesk: The site_isolation_config.ini file is broken or absent, the default configuration file will be used

Francisco Garcia

Updated April 15, 2024 22:32

DoNotDelete:docref

Applicable to:

Plesk fails with error:

PLESK_WARN: The site_isolation_config.ini file is broken or absent, the default configuration file will be used.

Absent or broken file /usr/local/psa/admin/conf/site_isolation_settings.ini or %plesk_dir%admin\conf\site_isolation_settings.ini

For Linux

Connect to the server via SSH
Backup the broken file /usr/local/psa/admin/conf/site_isolation_settings.ini .

# cp /usr/local/psa/admin/conf/site_isolation_settings.ini{,.orig}
Create the file site_isolation_settings.ini in /usr/local/psa/admin/conf/` as below:

# cp /usr/local/psa/admin/conf/site_isolation_settings.ini.default /usr/local/psa/admin/conf/site_isolation_settings.ini

For Windows

Connect to the server via RDP
Backup %plesk_dir%admin/conf/site_isolation_settings.ini by changing the name.
Copy %plesk_dir%admin/conf/site_isolation_settings.sample, paste it and change the name to site_isolation_settings.ini