Seaquel
SQL Server error code

SQL Server error 8910

SQL Server raises error 8910 at severity 16, which marks a problem with the query or data that you can correct.

Page %S_PGID in database ID %d is allocated to both object ID %d, index ID %d, partition ID %I64d, alloc unit ID %I64d (type %.*ls), and object ID %d, index ID %d, partition ID %I64d, alloc unit ID %I64d (type %.*ls).
Msg8910
Severity16
Group8000–8999

Source: Database Engine events and errors