Seaquel
SQL Server error code

SQL Server error 8998

SQL Server raises error 8998 at severity 16, which marks a problem with the query or data that you can correct.

Page errors on the GAM, SGAM, or PFS pages prevent allocation integrity checks in database ID %d pages from %S_PGID to %S_PGID. See other errors for cause.
Msg8998
Severity16
Group8000–8999

Source: Database Engine events and errors