The task 'Preparing document root and website structure for domain service' fails in POA with the following error message:
User 'username' does not exist.
More detailed diagnostics is provided in the example below:
Task name Preparing document root and website structure for domain service with ID 8101 Last execution output Destination host 'hw1.provider.com' (#42), IP '172.16.60.21' : User 'z101659' does not exist.
The user in question was not yet propagated from POA to the Linux Shared Hosting NG web cluster when the task was executed. POA does not try to execute the task several times as it does in most cases.
The problem is fixed in the POA 5.4.15, consider to upgrade POA to this or higher version.
In the mean time the task can be processed by re-running after some short period of time.