Web Error

System.InvalidCastException: Unable to cast object of type 'HCPOnline.CourseProcessed' to type 'System.Data.DataRowView'. at HCPOnline.Controls.GroupRepeater.GroupRepeater_ItemCreated(Object sender, RepeaterItemEventArgs e) in K:\Bangolf\DevOps_HCPOnlineBackend\Source\HCPOnline\Controls\GroupRepeater.cs:line 114 at System.Web.UI.WebControls.Repeater.OnItemCreated(RepeaterItemEventArgs e) at System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) at System.Web.UI.WebControls.Repeater.AddDataItemsIntoItemsArray(IEnumerable dataSource, Boolean useDataSource) at System.Web.UI.WebControls.Repeater.PostGetDataAction(IEnumerable dataSource) at System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) at System.Web.UI.Control.DataBindChildren() at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) at System.Web.UI.Control.DataBindChildren() at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) at HCPOnline.CourseList.GetData() in K:\Bangolf\DevOps_HCPOnlineBackend\Source\HCPOnline\CourseList.aspx.cs:line 132 at HCPOnline.CourseList.PagePreRenderEvent(Object sender, EventArgs e) in K:\Bangolf\DevOps_HCPOnlineBackend\Source\HCPOnline\CourseList.aspx.cs:line 61 at HCPOnline.BasePage.Page_PreRender(Object sender, EventArgs e) in K:\Bangolf\DevOps_HCPOnlineBackend\Source\HCPOnline\BasePage.cs:line 652 at System.Web.UI.Control.OnPreRender(EventArgs e) at System.Web.UI.Control.PreRenderRecursiveInternal() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)