do din se jab bhi mei ITDUNYA oir kisi section pir click karta hon tu yeh error ata hai

ERROR
Access Denied

* Access Denied by security policy

The security policy for your network prevents your request from being allowed at this time. Please contact your administrator if you feel this is incorrect.

or jab refresh karta hon tu sab teek ho jata hai.koi bata sakta hai isa kyon hota hai