Just a follow up on this. the stacktrace looks like this. Clearly its an internal issue?
Server Error in '/' Application.
Error ID - de90d43b-1ff4-45f2-8de2-32eeb03c8878. The Webpage you are looking for at /_portal/modal-form-template-path/d78574f9-20c3-4dcc-8d8d-85cf5b7ac141 is not found in the English language. To display Page Not Found page localize it in English language.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Error ID - de90d43b-1ff4-45f2-8de2-32eeb03c8878. The Webpage you are looking for at /_portal/modal-form-template-path/d78574f9-20c3-4dcc-8d8d-85cf5b7ac141 is not found in the English language. To display Page Not Found page localize it in English language.
Source Error:
Stack Trace:
[HttpException (0x80004005): Error ID - de90d43b-1ff4-45f2-8de2-32eeb03c8878. The Webpage you are looking for at /_portal/modal-form-template-path/d78574f9-20c3-4dcc-8d8d-85cf5b7ac141 is not found in the English language. To display Page Not Found page localize it in English language.]
Adxstudio.Xrm.Web.ContentMapCrmSiteMapProvider.GetNotFoundNode(ContentMap map, WebsiteNode site, IContentMapEntityUrlProvider urlProvider) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:434
Adxstudio.Xrm.Web.ContentMapCrmSiteMapProvider.FindSiteMapNode(String rawUrl, ContentMap map, Int32 counter, Boolean excludeFromSecurityValidation) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:161
Adxstudio.Xrm.Web.<>c__DisplayClass2_0.<FindSiteMapNode>b__1(ContentMap map) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:35
Adxstudio.Xrm.Cms.<>c__DisplayClass20_0`1.<Using>b__0() in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Cms\ContentMap.cs:143
Adxstudio.Xrm.Cms.ContentMap.Using(ContentMapLockType lockType, Action action, String memberName, String sourceFilePath, Int32 sourceLineNumber) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Cms\ContentMap.cs:195
Adxstudio.Xrm.Cms.ContentMap.Using(ContentMapLockType lockType, Func`1 action, String memberName, String sourceFilePath, Int32 sourceLineNumber) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Cms\ContentMap.cs:144
Adxstudio.Xrm.Web.<>c__DisplayClass2_0.<FindSiteMapNode>b__0() in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:35
Adxstudio.Xrm.Web.ContentMapCrmSiteMapProvider.CachePerRequest(String method, String key, Func`1 get) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:606
Adxstudio.Xrm.Web.ContentMapCrmSiteMapProvider.FindSiteMapNode(String rawUrl) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\ContentMapCrmSiteMapProvider.cs:35
System.Web.SiteMapProvider.FindSiteMapNode(HttpContext context) +70
System.Web.SiteMapProvider.get_CurrentNode() +70
Adxstudio.Xrm.Web.Mvc.Liquid.SiteMapDrop.<.ctor>b__2_0() in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\Mvc\Liquid\SiteMapDrop.cs:18
System.Lazy`1.CreateValue() +727
System.Lazy`1.LazyInitValue() +401
Adxstudio.Xrm.Web.Mvc.Html.LiquidExtensions.GetLiquidEnvironment(HtmlHelper html) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\Mvc\Html\LiquidExtensions.cs:181
Adxstudio.Xrm.Web.Mvc.Html.LiquidExtensions.RenderLiquid(HtmlHelper html, String source, String sourceIdentifier, TextWriter output, IDictionary`2 variables) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\Mvc\Html\LiquidExtensions.cs:427
Adxstudio.Xrm.Web.Mvc.Html.LiquidExtensions.Liquid(HtmlHelper html, String source, IDictionary`2 variables) in D:\VSO_Agent_007\Work_07\20\s\Framework\Adxstudio.Xrm\Web\Mvc\Html\LiquidExtensions.cs:355
ASP.masterpages_default_master.__RenderTitle(HtmlTextWriter __w, Control parameterContainer) +53
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +260
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +79
ASP.masterpages_default_master.__Render__control6(HtmlTextWriter __w, Control parameterContainer) +55
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +260
System.Web.UI.HtmlControls.HtmlTitle.Render(HtmlTextWriter writer) +81
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +79
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +159
System.Web.UI.HtmlControls.HtmlHead.RenderChildren(HtmlTextWriter writer) +27
System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +47
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +79
ASP.masterpages_default_master.__Render__control1(HtmlTextWriter __w, Control parameterContainer) +332
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +260
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +79
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +159
System.Web.UI.Page.Render(HtmlTextWriter writer) +39
