Problem after upgrading Joomla 2.5 to 3.4

Hi,

I have upgraded my Joomla 2.5 to 3.4.

Before I did this I uninstalled ContactMap for 2.5 and then installed ContactMap for J3 after the upgrade.

Now when I try to add a menu item linking to contact map it doesn't work. Instead the page returns to index page when menu is clicked.

Can you help me resolve this please?

Thank you,

Mark