I to am having the same issue.

DNN Version : 4.08.00

Blog Version : 3.04.00

Two errors:

ModuleId: 454
ModuleDefId: 110
FriendlyName: View Blog
ModuleControlSource: DesktopModules/Blog/MainView.ascx
AssemblyVersion: 04.08.00
PortalID: 0
PortalName: ReefChat
UserID: 1
UserName: host
ActiveTabID: 81
ActiveTabName: Blogs
RawURL: /Extras/Blogs/tabid/81/EntryID/136/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.reefchat.org/Extras/Blogs/tabid/81/Default.aspx
UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en; rv:1.8.1.14) Gecko/20080409 Camino/1.6 (like Firefox/2.0.0.14)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 911cd927-dbcd-462b-bffa-8fb617f81bdc
InnerException: Value cannot be null. Parameter name: format
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.String.Format
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Value cannot be null. Parameter name: format ---> System.ArgumentNullException: Value cannot be null. Parameter name: format at System.String.Format(IFormatProvider provider, String format, Object[] args) at DotNetNuke.Modules.Blog.ViewEntry.BindCommentsList() at DotNetNuke.Modules.Blog.ViewEntry.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---
Source:
Server Name: DEDI479

Then :

AssemblyVersion: 04.08.00
PortalID: 0
PortalName: ReefChat
UserID: 1
UserName: host
ActiveTabID: 81
ActiveTabName: Blogs
RawURL: /Extras/Blogs/tabid/81/EntryID/136/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.reefchat.org/Extras/Blogs/tabid/81/Default.aspx
UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en; rv:1.8.1.14) Gecko/20080409 Camino/1.6 (like Firefox/2.0.0.14)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: b385e90f-7b4b-4daf-af26-baa6e72d3a42
InnerException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>).
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Web.UI.ControlCollection.Add
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). ---> System.Web.HttpException: The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>). at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.Services.Exceptions.Exceptions.ProcessModuleLoadException(String FriendlyMessage, PortalModuleBase ctrlModule, Exception exc, Boolean DisplayErrorMessage) --- End of inner exception stack trace ---
Source:
Server Name: DEDI479

Previous version 3.03 was working. Can I go back and not effect current blogs or is there a fix for this issue?