vtiger upgrade from 7.0.1 to 7.1.0 causing illegal

Question

If I try to upgrade vtiger, I am getting an illegal request message, nothing happens, any Idea whats going wrong?

Answer 1

Check if $site_URL Variable is correct in config.inc.php file? also you can disable this error by editing the following file includes/http/Request.php

around line 207-207 on validateReferer function find

        throw new Exception('Illegal request');

change to

        //throw new Exception('Illegal request');