Seaquel
SQL Server error code

SQL Server error 4994

SQL Server raises error 4994 at severity 16, which marks a problem with the query or data that you can correct.

Computed column '%.*ls' in table '%.*ls' cannot be persisted because the column type, '%.*ls', is a non-byte-ordered CLR type.
Msg4994
Severity16
Group4000–4999

Source: Database Engine events and errors