InitForm() error

Hi,

I've installed the release v 1.4.1.0 of NF 2010.

Now I've got some errors in the sharepoint logs :

Failed to handle initiate workflow page initialize event. Error: Impossible de trouver l’association de flux de travail.. Stack trace:    at Nintex.Forms.SharePoint.WebParts.InitiateWorkflow.InitiateWorkflowUserControl.InitForm()

Do you know what does this error mean and how can I solve it?

Thanks