Seaquel
SQL Server error code

SQL Server error 8943

SQL Server raises error 8943 at severity 16, which marks a problem with the query or data that you can correct.

Table error: Object ID %d, index ID %d, partition ID %I64d, alloc unit ID %I64d (type %.*ls), page %S_PGID. Test (%.*ls) failed. Slot %d, row extends into free space at 0x%x.
Msg8943
Severity16
Group8000–8999

Source: Database Engine events and errors