Seaquel
SQL Server error code

SQL Server error 8972

SQL Server raises error 8972 at severity 16, which marks a problem with the query or data that you can correct.

Forwarded row referenced by more than one row. Object ID %d, partition ID %I64d, alloc unit ID %I64d (type %.*ls), page %S_PGID, slot %d incorrectly points to the forwarded row page %S_PGID, slot %d, which correctly refers back to page %S_PGID, slot %d.
Msg8972
Severity16
Group8000–8999

Source: Database Engine events and errors