workday sync failed

Hello Mates,

My work day sync has below error while trying to update mail address from person to workday.

ErrorMessages (2021-08-23 12:39:13.723) [1777018] Error executing synchronization project (Workday)'s workflow (Provisioning).

[1777124] Error executing projection step (Person -> Worker) of projection configuration (Provisioning (65fc17f4-a272-43e1-9160-9b4af0dc8523)).
[1777219] Error executing synchronization step (Person -> Worker)!
[1777004] Method ( (Update)) could not be executed successfully.
[System.Management.Automation.RuntimeException] Failed to update worker email address, unknown error
[System.Management.Automation.RuntimeException] Failed to update worker email address, unknown error

Any idea how can I move further?