Level Fatal / App-WebDav - Entry in the Log_File

[monaco]

When I deleted two files in the nextcloud earlier, the following entry was written to the log file.

Doctrine\DBAL\Exception\UniqueConstraintViolationException: An exception occurred while executing ‘INSERT INTO oc_filecache (mimepart,mimetype,mtime,size,etag,storage_mtime,permissions,checksum,path_hash,path,parent,name,storage) SELECT ?,?,?,?,?,?,?,?,?,?,?,?,? FROM oc_filecache WHERE storage = ? AND path_hash = ? HAVING COUNT(*) = 0’ with params [“1”, “2”, 1535742027, -1, “5b89904b455a9”, 1535742027, 31, “”, “fb66dca5f27af6f15c1d1d81e6f8d28b”, “files_trashbin”, 6, “files_trashbin”, 2, 2, “fb66dca5f27af6f15c1d1d81e6f8d28b”]: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry ‘2-fb66dca5f27af6f15c1d1d81e6f8d28b’ for key

Is the entry harmless?

[monaco]

Does no one have any idea how this entry in the log came about?