An error occurred while attaching module (Dynamicweb.Frontend.Content)

System.NullReferenceException: Object reference not set to an instance of an object.at Co3.Redirect.BrowserLanguage.CustomModules.RedirectBrowserLanguage.RedirectBrowserLanguage.GetContent() in C:\Data\Development\git\co3-Dynamicweb-modules\Co3.Redirect.BrowserLanguage\Co3.Redirect.BrowserLanguage\CustomModules\RedirectBrowserLanguage\RedirectBrowserLanguage.cs:line 136at Dynamicweb.Frontend.Content.GetModuleOutput(Paragraph paragraph, PageView pageview)

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Error executing template "Designs/elkarainwear/_inc/popup.cshtml"System.NullReferenceException: Object reference not set to an instance of an object.at CompiledRazorTemplates.Dynamic.RazorEngine_a0baf7adcf9d4120aec347a3766fe928.Execute() in E:\Dynamicweb.NET\Solutions\elkarainwear.espresso4.dk\files\Templates\Designs\elkarainwear\_inc\popup.cshtml:line 12at RazorEngine.Templating.TemplateBase.RazorEngine.Templating.ITemplate.Run(ExecuteContext context, TextWriter reader)at RazorEngine.Templating.RazorEngineService.RunCompile(ITemplateKey key, TextWriter writer, Type modelType, Object model, DynamicViewBag viewBag)at RazorEngine.Templating.RazorEngineServiceExtensions.<>c__DisplayClass16_0.b__0(TextWriter writer)at RazorEngine.Templating.RazorEngineServiceExtensions.WithWriter(Action`1 withWriter)at Dynamicweb.Rendering.Template.RenderRazorTemplate()
1 @using System.Globalization@using System.Web@using Co3.Espresso.Website.Models.FrontEnd.Settings@using Co3.Espresso.Website.Services@using Dynamicweb.Content@using Dynamicweb.Frontend@{Area area = PageView.Current().Area;bool enablePopup = area.Item["EnablePopup"]?.ToString() == "True";int popupPage = area.Item["PopupPage"] != null ? Convert.ToInt32( area.Item["PopupPage"] ) : 0;int popupDelay = 86400000;int cookieDaysToExpiration = Convert.ToInt32( area.Item["PopupCookieExpirationTime"].ToString() );string popupSize = area.Item["PopupSize"]?.ToString();string popupCloseIconColor = area.Item["CloseIconColor"]?.ToString();string popupCampaignNameCookieName = area.Item["CampaignName"]?.ToString().ToLower() + ".hidden";HttpCookie popupCampaignStateCookie = HttpContext.Current.Request.Cookies[ popupCampaignNameCookieName ];DateTime popupCampaignExpirationDateTime = DateTime.UtcNow.AddDays( cookieDaysToExpiration );bool popupCampaignIsExpired = popupCampaignExpirationDateTime.Date < DateTime.Now.Date;if ( enablePopup == true && popupCampaignIsExpired == false && popupCampaignStateCookie == null ){popupDelay = area.Item["PopupDelayTime"] != null ? Convert.ToInt32( area.Item["PopupDelayTime"] ) * 1000 : 0;}}@if ( enablePopup == true ){<!-- Modal --><div aria-hidden="true" aria-labelledby="modal-@popupPage" class="js-elka-campaign-popup fade modal" data-popup-delay="@popupDelay" data-popup-expiration-date="@popupCampaignExpirationDateTime.ToString( CultureInfo.InvariantCulture )" data-popup-campaign="@popupCampaignNameCookieName" id="modal-@popupPage" role="dialog" tabindex="-1"><div class="modal-dialog @popupSize" role="document"><div class="modal-content"><div class="modal-body p-0"><button aria-label="Close" class="close font-weight-normal pos-r-1 pos-t-1 position-absolute z-index-500 @popupCloseIconColor" data-dismiss="modal" type="button"><i class="material-icons">close</i></button>@RenderingService.Instance.SectionStart( new SectionSettings() )@RenderPageContent( popupPage )</div></div></div></div>}