plugin not working at all after update version 1.2.0.6

Hi,

Updated today from version 1.2.0.5 to version 1.2.0.6 and now visiting the plugin page just show my homepage!!!

I de-activiated the WHMCS WP plugin and visited the plugin page again and Ok but naturally only seeing the WHMCS shortcodes.

Re-activating the plugin and visiting the same plugin page again just shows my sites homepage again.

Please help.