Hi Siva,
Thanks for you support and sorry for the trouble caused by the plugin.
Saw your webpage with my plugin on it, Very happy and glad to see the implementation that you have done over the plugin.
I need the following stuffs from you to get in depth of the issue:
1. I need to look at the site with the plugin deactivated.
2. Need to check how the Menu (Appearance -> Menus) is created without plugin is activated and with plugin activated
3. Also need details on your Permalink settings (Settings -> Permalink Settings)
4. If possible give me a temporary admin username, If you can provide me with the SQL dumps for the wp_post, wp_post_meta, wp_options with the plugin activated and deactivated it would be much easier and faster to track the issue.
Please send me the SQL only if you feel safe that you don’t have sensitive data in it.
Tweet me @prakashm88, and i’ll provide you the details to contact me or send in your contact information for further assistance.
Thanks.