Hi,
If you don't remember about prefix, you may not have modify it during the DNN installation by the way it should not cause any problem.
If the problem persist, could you try to uninstall and install again SimpleSignIn and note any error you get?
Thanks,
Nadege
I reinstalled it again,its working fine for me thanks ,I have one more question how we can rename Validate Button
To rename Validate Button, you go in Admin-> Languages.
After that, under "Static Resources" you click on the edit button of your choice (under "Site" or under "Host").
Then, you expend "Aricie.SimpleSignIn" in your Local Resources. In expending "App_LocalResources", you click on Formulaire.ascx and modify the value "Resource Name: cmdSubmit.Text".
However, if you have several languages on your web site, this operations will have to do for each language you want to configure.
It's the same method I said you in the previous post but instead of change the "Resource Name: cmdSubmit.Text", you change "Resource Name: ChampsRequis.Text"