Why the file in document library is automatically restored?

I have confirmed that the files deleted from the document library are automatically restored.

The file has been moved by Power Automate from Document Library A to the "Approved Folders" in Document Library A. (See the yellow line.)
At this time, the audit log records that the file was deleted from Document Library A in March. (See the red line.)
However, in May, an access log for that file was recorded under the account name "app @ sharepoint". (See the green line.)

Why did this happen?
Is there a way to prevent it?

Thank you.