My log is filled this morning with the following errors, often several of each recorded in a single second. They've been nonstop for the past 40 minutes, so I've got well over a hundred of them in my log all of a sudden, and I don't recall ever seeing them before. No work has been done on the site at all, so I'm not sure what could be new. Has anyone seen it before? Will it stop?

AssemblyVersion: 5.3.1
PortalID: 0
PortalName: PortalName
UserID: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 96e0084a-f4b5-444f-aed8-c833da9e4184
InnerException: Attempted to divide by zero.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Data.DataTable.SetNewRecordWorker
StackTrace:
Message: System.DivideByZeroException: Attempted to divide by zero.at System.Data.DataTable.SetNewRecordWorker(DataRow row, Int32 proposedRecord, DataRowAction action, Boolean isInMerge, Int32 position, Boolean fireEvent, Exception& deferredException)at System.Data.DataTable.SetNewRecord(DataRow row, Int32 proposedRecord, DataRowAction action, Boolean isInMerge, Boolean fireEvent)at System.Data.DataTable.DeleteRow(DataRow row)at System.Data.DataRow.Delete()at System.Data.DataRowCollection.Remove(DataRow row)at DotNetNuke.Modules.UserDefinedTable.List.FilterDataTable(String filter)at DotNetNuke.Modules.UserDefinedTable.List.BindDataUsingXslTransform(String StyleSheet)
Source:
Server Name: GENERIC86

AssemblyVersion: 5.3.1
PortalID: 0
PortalName: PortalName
UserID: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: c9912920-eede-4a9d-b62f-668b9dcfe8a9
InnerException: Deleted row information cannot be accessed through the row.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Data.DataRow.GetDefaultRecord
StackTrace:
Message: System.Data.DeletedRowInaccessibleException: Deleted row information cannot be accessed through the row.at System.Data.DataRow.GetDefaultRecord()at System.Data.DataRow.get_Item(String columnName)at DotNetNuke.Modules.UserDefinedTable.List.PopulateDataGridColumns()at DotNetNuke.Modules.UserDefinedTable.List.BindDataToDataGrid()at DotNetNuke.Modules.UserDefinedTable.List.BindDataUsingXslTransform(String StyleSheet)at DotNetNuke.Modules.UserDefinedTable.List.BindData()at DotNetNuke.Modules.UserDefinedTable.List.Page_PreRender(Object sender, EventArgs e)
Source:
Server Name: GENERIC86

Funny you should say that. The reason I'm spending so much time in my error log is because my application has recently developed a habit of starting every 10 minutes precisely, and I can't figure out why (and the host denies any involvement). So in the midst of all these errors, it actually has restarted a few times.

[Got an undefined DNN error first time I posted my last reply. Didn't look like it'd gone through, but it had. Duplicate.]