ObjectContext.Translate not working in oracle 19 version - oracle

Question

this is my function that translate result from db to object classe.
public static List<T> GetListBySP<T>(string pSPName, params object[] pParamArray)
{
List<T> res = null;
//string connStr = ConfigurationManager.ConnectionStrings[sConnStr].ConnectionString;
string connStr = DbFactory.ConnStr;
using (OracleConnection conn = new OracleConnection(connStr))
{
using (OracleCommand cmd = new OracleCommand())
{
cmd.Connection = conn;
cmd.CommandText = pSPName;
cmd.CommandType = CommandType.StoredProcedure;
FillParameters(cmd.Parameters, pParamArray);
cmd.Parameters.Add("pCursor", OracleDbType.RefCursor).Direction = ParameterDirection.Output;
using (var db = DbFactory.CreateRo())
{
try
{
cmd.Connection.Open();
var reader = cmd.ExecuteReader();
res = ((IObjectContextAdapter)db).ObjectContext.Translate<T>(reader).ToList<T>();
}
catch (Exception ex)
{
throw ex;
}
finally
{
cmd.Connection.Close();
}
}
}
}
return res;
}
after update oracle version to 19.
exaption throw on line
res = ((IObjectContextAdapter)db).ObjectContext.Translate<T>(reader).ToList<T>();
the exeption is:
An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.
the project run on .net framework 4.6.2