Exclude Stores error on Epi CMS 11.9 and Geta.DdsAdmin 11.0

[duycs]

I installed Geta.DdsAdmin version 11.0 on EPI CMS version 11.9.
At the CMS choose Geta/DDS Admin, click Exclude Stores, I found this error:
Content controls have to be top-level controls in a content page or a nested master page that references a master page.

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: Content controls have to be top-level controls in a content page or a nested master page that references a master page.

Stack Trace:
[HttpException (0x80004005): Content controls have to be top-level controls in a content page or a nested master page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +468
System.Web.UI.Page.get_Master() +55
System.Web.UI.Page.ApplyMasterPage() +15
System.Web.UI.Page.PerformPreInit() +52
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1132

[harveyphan]

Hello @getadev ,

Can you look at this issue plz? It's quite critical for us too.

Thanks