In the LoggedInTemplate you have an uncompleted control definition:
<LoggedInTemplate>
**<asp:LoginName**
<asp:LoginStatus ID="logStatus" runat="server" />
</LoggedInTemplate>
That might cause the issue. You can also add extra attribrutes to the LoginStatus control:
<asp:LoginStatus ID="lgnStatus" runat="server" LogoutText="uitloggen" LogoutAction="Redirect" LogoutPageUrl="/loginpage" />