Seaquel
SQL Server error code

SQL Server error 7931

SQL Server raises error 7931 at severity 16, which marks a problem with the query or data that you can correct.

Database error: The FILESTREAM directory ID %.*ls for a partition was seen two times.
Msg7931
NameDBCC2_FS_DOUBLE_ROWSET_ACTUAL_FACT
Severity16
Group7000–7999

What it means

The same partition ID for a Filestream directory was found in the metadata.

Source: Database Engine events and errors