Symptoms

• Synchronization of files fails with "Internal error" (shown in Cyber Protection monitor)
• At the same time, you can see errors "UNIQUE constraint failed: nodes.id" in the sync-and-share-agent logs, location of the logs:

Windows: C:\ProgramData\Acronis\Agent\var\log

Mac: Library\Application Support\Acronis\Agent\var\log\

Cause

Upgrade issue from Legacy agent to the Unified agent.

Workaround

Reinstall the Acronis Cyber Files agent. More information can be found in the Product documentation