Hi guys, two questions. I am having trouble connecting to my site, and i read that in the web.config file you should have "SQLDataProvider" not "SqlDataProvider"

Can someone please tell me which one you should have and if it makes a difference. When i changed it to the first one, i got a different error which is as follows. Can someone please tell me what this means and how to fix it? Cheers.

 Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 73: 
Line 74:             'Determine the Upgrade status and redirect to Install.aspx
Line 75:             Select Case GetUpgradeStatus()
Line 76:                 Case Globals.UpgradeStatus.Install, Globals.UpgradeStatus.Upgrade
Line 77:                     If AutoUpgrade Then

[NullReferenceException: Object reference not set to an instance of an object.]
   DotNetNuke.Framework.Reflection.CreateObject(String ObjectProviderType, String ObjectProviderName, String ObjectNamespace, String ObjectAssemblyName, Boolean UseCache) +508
   DotNetNuke.Data.DataProvider.CreateProvider() +39
   DotNetNuke.Data.DataProvider..cctor() +13

[TypeInitializationException: The type initializer for 'DotNetNuke.Data.DataProvider' threw an exception.]
   DotNetNuke.Common.Globals.GetUpgradeStatus() +65
   DotNetNuke.Common.Global.CheckVersion() in E:\web\gamesbuzzpo\htdocs\App_Code\Global.asax.vb:75
   DotNetNuke.Common.Global.Application_Start(Object Sender, EventArgs E) in E:\web\gamesbuzzpo\htdocs\App_Code\Global.asax.vb:252

Server Error in '/' Application.

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Object reference not set to an instance of an object.