<p>Hi,</p><p>I try to use full registration form but many times I get:</p><p>"The supplied username is invalid"</p><p>If get submitted I do not see the confirmation page and in the events log I have:</p><p>System.FormatException: Input string was not in a correct format.<br> at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)<br> at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)<br> at DotNetNuke.Entities.Modules.UserModuleBase.get_UserId()<br> at DotNetNuke.Modules.Admin.Authentication.Login.get_RedirectURL()<br> at DotNetNuke.Modules.Admin.Authentication.Login.BindLoginControl(AuthenticationLoginBase authLoginControl, AuthenticationInfo authSystem)<br> at DotNetNuke.Modules.Admin.Authentication.Login.BindLogin()</p></p><p>The tooltip at username is "Display Name"</p><p>I use DNN 7.3.1 and registration kit no <p>XMP-MC-KitUserRegistrationForm-Kit_1.10.2.0_Install</p><p>Please tell me which is the correct format for username I should use so the form works?</p><p>Catalin</p></p>