How can I get rid of the "...webfarm.sync is denied.” error?
The full error message is “Message: Access to the path 'C:\inetpub\wwwroot\Kentico_Production\CMS\App_Data\CMSModules\WebFarm\webfarm.sync' is denied.”
Even if you do not utilize web farms, the ‘webfarm.sync’ file is used by external services such as Windows Scheduler or Health Monitoring to let the system know about changes they made. These changes are logged as anonymous synchronization tasks. If you use any of these services, make sure they have sufficient permissions to the mentioned file as well as the Kentico application itself according to Kentico documentation – Disk permission problems.