Seaquel
SQL Server error code

SQL Server error 3964

SQL Server raises error 3964 at severity 16, which marks a problem with the query or data that you can correct.

Transaction failed because this DDL statement is not allowed inside a snapshot isolation transaction. Since metadata is not versioned, a metadata change can lead to inconsistency if mixed within snapshot isolation.
Msg3964
Severity16
Group3000–3999

Source: Database Engine events and errors