Error trying to upgrade from 1.5 to 1.6

I am getting the following error when trying to upgrade from 1.50 to 1.60

Server Error in '/' Application.
Could not find stored procedure 'Nop_ProductVariantLoadByPrimaryKey'.
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.Data.SqlClient.SqlException: Could not find stored procedure 'Nop_ProductVariantLoadByPrimaryKey'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[SqlException (0x80131904): Could not find stored procedure 'Nop_ProductVariantLoadByPrimaryKey'.]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +1950890
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4846875
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2392
   System.Data.SqlClient.SqlDataReader.ConsumeMetaData() +33
   System.Data.SqlClient.SqlDataReader.get_MetaData() +83
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +297
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +954
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +32
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +141
   System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +12
   System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior) +10
   Microsoft.Practices.EnterpriseLibrary.Data.Database.DoExecuteReader(DbCommand command, CommandBehavior cmdBehavior) +223
   Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteReader(DbCommand command) +244
   NopSolutions.NopCommerce.DataAccess.Products.SqlProductProvider.GetProductVariantById(Int32 productVariantId, Int32 languageId) in SqlProductProvider.cs:1238
   NopSolutions.NopCommerce.BusinessLogic.Products.ProductManager.GetProductVariantById(Int32 productVariantId, Int32 languageId) in ProductManager.cs:1767
   NopSolutions.NopCommerce.BusinessLogic.Products.ProductManager.GetProductVariantById(Int32 productVariantId) in ProductManager.cs:1746
   NopSolutions.NopCommerce.BusinessLogic.Orders.ShoppingCartItem.get_ProductVariant() in ShoppingCartItem.cs:111
   NopSolutions.NopCommerce.BusinessLogic.Products.PriceHelper.GetUnitPrice(ShoppingCartItem shoppingCartItem, Customer customer, Boolean includeDiscounts) in PriceHelper.cs:304
   NopSolutions.NopCommerce.BusinessLogic.Products.PriceHelper.GetSubTotal(ShoppingCartItem shoppingCartItem, Customer customer, Boolean includeDiscounts) in PriceHelper.cs:278
   NopSolutions.NopCommerce.BusinessLogic.Orders.ShoppingCartManager.GetShoppingCartSubTotal(ShoppingCart cart, Customer customer, Decimal& discountAmount, Discount& appliedDiscount, Boolean includingTax, Decimal& subtotalWithoutPromo, Decimal& subtotalWithPromo) in ShoppingCartManager.cs:495
   NopSolutions.NopCommerce.BusinessLogic.Orders.ShoppingCartManager.GetShoppingCartSubTotal(ShoppingCart cart, Customer customer, Decimal& discountAmount, Discount& appliedDiscount, Decimal& subtotalWithoutPromo, Decimal& subtotalWithPromo) in ShoppingCartManager.cs:467
   NopSolutions.NopCommerce.Web.Modules.MiniShoppingCartBoxControl.GetOrderSubtotal(ShoppingCart shoppingCart) in MiniShoppingCartBox.ascx.cs:98
   NopSolutions.NopCommerce.Web.Modules.MiniShoppingCartBoxControl.OnPreRender(EventArgs e) in MiniShoppingCartBox.ascx.cs:70
   System.Web.UI.Control.PreRenderRecursiveInternal() +80
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

i am trying to do the upgrade using GoDaddy hosting connection

any help would be very appreciated, thank you