Seaquel
SQL Server error code

SQL Server error 8674

SQL Server raises error 8674 at severity 16, which marks a problem with the query or data that you can correct.

The query processor is unable to produce a plan. The table '%.*ls' is unavailable because the heap is corrupted. Take the database offline to rebuild the table and heap, and then run the query processor again.
Msg8674
Severity16
Group8000–8999

Source: Database Engine events and errors