Bug in GoogleStore page

I just created this new blog so I could try and post regularly, Lots of failed attempts because of my laziness, but anyway, the first post (as it usually happens) isnt a dummy post. Its a bug report, yay!!

When accessing the "gear" link from Blogger profile pages, I get a error page from Google Store, nothing to worry there, it happens here and there, but whats surprising is this block of code thats spit on the page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="err.aspx.cs" Inherits="Ecometry.Web.Impl.err" %>

Would anyone know where to file a bug report for this?