Hello,
I am new to Power Pages and Portals, so any help is appreciated!!
I am trying to edit the navigation bar in Portal Management. Some links will be Pages I design while others will be links to external URLs.

I found out that editing Web Link in Portal Management does reflect the changes in Design Studio but something is breaking when I preview the site. I am getting the following error:

I have also tried creating completely new web link set and adding that web link set to the "Header" code as well. But no luck!
Does anyone else is facing the same error? Is there any solution available?
Regards,
KB