Error: Internal system error. For more details, see the log files in the C:\Program F

[RodrigoB]

I got this error just after try to change a simple text. Trying, trying and same error come up!

I pay for this software, I get bad fellings about that DEAL, my FTP doesn´t work, also after get a solution for that, doing manually on IIS, this SB4.5 don´t change pages has to change!

Unknown exception thrown.
---System.MissingMethodException: Method not found: 'Void SWsoft.SiteBuilder.BO.Facade.SiteCommands.SetPageData..ctor(Int64, SWsoft.SiteBuilder.Repository.IPageModuleDesigner, System.String, System.String, System.String, Boolean, Boolean)'.
Stack trace System.MissingMethodException: at SWsoft.SiteBuilder.Web.UI.EditPage.SaveContent()
at SWsoft.SiteBuilder.Web.UI.EditPage.Save()
at SWsoft.SiteBuilder.Web.UI.BaseWizardPage.OnBubbleEvent(Object source, EventArgs args)
at System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args)
at System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e)
at SWsoft.SiteBuilder.Web.UI.WebControls.IconButton.RaisePostBackEvent(String eventArgument)
at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)