Now My Website Home page is loading but when logged in cookies has been set but it says \[quote\] Internal Server Error The server encountered an internal error \[quote\] misconfiguration and was unable to complete your request. Please contact the server administrator to inform of the time the error occurred and of anything you might have done that may have caused the error. More information about this error may be available in the server error log. \[/quote\]\[/quote\]I have tried both IE & Chrome --> Shows same error.System was working perfectly till yesterday! Don't know what happened now!In login setup page, i am using.. setcookie("userid",$userid[1],time()+3600); setcookie("password",$password,time()+3600);And after login it will redirect to next page which is containing following code...\[code\]<? ob_start(); ?><?php if (isset($_COOKIE["userid"]) and isset($_COOKIE["password"])) {//logged in; } else { die("You are not logged in...<meta http-equiv='Refresh' content='0; url=index.php' />"); }?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>My site</title>\[/code\]... and so on...