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 157
at Dynamicweb.Frontend.Content.GetModuleOutput(Paragraph paragraph, PageView pageview)

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