Hi, please help..

I have install k2 plugin but error please check this url :

( message error : An appropriate representation of the requested resource could not be found on this server. This error was generated by Mod_Security.)
www.indoindians.com/component/k2/item/40037-biography-priyanka-raina


but other plugin normal url :
www.indoindians.com/associations/associations

Hi. I see no issues in the links you provided. However if you face further issues regarding mod_security you need to go it's site and read it's documentation. This is a matter of server setup and has nothing to do with K2.