Seaquel
SQL Server error code

SQL Server error 7708

SQL Server raises error 7708 at severity 16, which marks a problem with the query or data that you can correct.

Duplicate range boundary values are not allowed in partition function boundary values list. Partition boundary values at ordinal %d and %d are equal.
Msg7708
Severity16
Group7000–7999

Source: Database Engine events and errors