Hey

One of my clients have e rather larger form on their website.

It is on a closed section on the website, so can't show it.

The error is

At /interne-sider/programplanlaegning/programskema-forelaesningsraekker.aspx 
(Referred by: 
http://domain.dk/interne-sider/programplanlaegning/programskema-forelaesningsraekker.aspx): 
System.NullReferenceException: Object reference not set to an instance of an object.     
at Umbraco.Forms.UI.Usercontrols.RenderForm.nextPage(Object sender, EventArgs e)     
at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)     

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

When I look in the umbracoLog, I can se several entries with this error.

Any suggestions ?