Seaquel
SQL Server error code

SQL Server error 7904

SQL Server raises error 7904 at severity 16, which marks a problem with the query or data that you can correct.

Table error: Cannot find the FILESTREAM file "%.*ls" for column ID %d (column directory ID %.*ls container ID %d) in object ID %d, index ID %d, partition ID %I64d, page ID %S_PGID, slot ID %d.
Msg7904
NameDBCC2_FS_MISSING_FILE
Severity16
Group7000–7999

What it means

A column value of a partition does not have a matching FILESTREAM file in the corresponding FILESTREAM column directory.

Source: Database Engine events and errors