Navigation is not working on Asp.net Master Page

<asp:Menu ID="Menu1" runat="server" Orientation="Horizontal" Height="25px" BackColor="#F7F6F3" DynamicHorizontalOffset="2" Font-Names="Verdana" Font-Size="0.8em" ForeColor="#7C6F57" StaticSubMenuIndent="10px">
    <DynamicHoverStyle BackColor="#7C6F57" ForeColor="White" />
    <DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
    <DynamicMenuStyle BackColor="#F7F6F3" />
    <DynamicSelectedStyle BackColor="#5D7B9D" />
    <Items>
        <asp:MenuItem Text="Home" Value="Home"></asp:MenuItem>
        <asp:MenuItem Text="Events" Value="Events">
            <asp:MenuItem Text="Muharram-ul-Haram" Value="Muharram-ul-Haram"></asp:MenuItem>
            <asp:MenuItem Text="Safar-ul-Muzaffar" Value="Safar-ul-Muzaffar"></asp:MenuItem>
            <asp:MenuItem Text="Rabi-ul-Awwal" Value="Rabi-ul-Awwal"></asp:MenuItem>
            <asp:MenuItem Text="Rabi-us-Sani" Value="Rabi-us-Sani"></asp:MenuItem>
            <asp:MenuItem Text="Jamadi-al-Awwal" Value="Jamadi-al-Awwal"></asp:MenuItem>
            <asp:MenuItem Text="Jamadi-us-Sani" Value="Jamadi-us-Sani"></asp:MenuItem>
            <asp:MenuItem Text="Rajab-al-Murajjab" Value="Rajab-al-Murajjab"></asp:MenuItem>
            <asp:MenuItem Text="Shaban-al-Moazzam" Value="Shaban-al-Moazzam"></asp:MenuItem>
            <asp:MenuItem Text="Ramzan-ul-Mubarak" Value="Ramzan-ul-Mubarak"></asp:MenuItem>
            <asp:MenuItem Text="Shawwal-al-Mukarram" Value="Shawwal-al-Mukarram"></asp:MenuItem>
            <asp:MenuItem Text="ZeeQaadah" Value="ZeeQaadah"></asp:MenuItem>
            <asp:MenuItem Text="ZilHajjah" Value="ZilHajjah"></asp:MenuItem>
        </asp:MenuItem>
        <asp:MenuItem Text="Calender" Value="Calender"></asp:MenuItem>
        <asp:MenuItem Text="Mobile Apps" Value="Mobile Apps"></asp:MenuItem>
    </Items>
    <StaticHoverStyle BackColor="#7C6F57" ForeColor="White" />
    <StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
    <StaticSelectedStyle BackColor="#5D7B9D" />
            </asp:Menu>