Visual Basic

In an existing vb.net 2010 app, I am getting the following error message when I debug the code and use a sql server database:

System.ArgumentException {"Keyword not supported;'testdb; database'."}

The error message come from the following code:

#Region "Public Shared Function OpenConnectionO() As SqlConnection"
    Public Shared Function OpenConnectionA() As SqlConnection
         
             Dim con As SqlConnection = New SqlConnection(SiteHelper.SQLConnectionStringO)
             con.Open()

            Return con

    End Function
 #End Region

This is code that has existed for a very long time. What is new is the connection is being made to a new test database that has been setup within the last 6 months. 

The config file looks like the following:

<connectionStrings>
     <clear />
         <add name="sqlO" connectionString="TestI; Database=OPS; User ID=Usr; Password=etxxxxxx;" />

  </connectionStrings>

Thus would you tell me what you suggest I try so that I can determine where the error lies?