I want to integrate my Gmail and Salesforce. Followed the steps in the below link.

https://salesforce.stackexchange.com/questions/92544/integration-with-gmail-with-salesforce

I don't know where I am doing wrong, I have created a contact clicked on Email and it's going to
 https://www.google.com/a/gmail.com/ServiceLogin?service=mail&passive=true&rm=false&continue=https://mail.google.com/mail/mail/?view%3Dcm%26fs%3D1%26tf%3D1%26to%3Dkavyasree.mareedu@gmail.com%26bcc%3Demailtosalesforce@8-1owc82hg2n80ydee55rvjxkh6hge0jck2xrhmkqb5ndeaa4103.6f-2zhccuak.ap4.le.salesforce.com&ltmpl=default&ltmplcache=2&emr=1&osid=1# (https://www.google.com/a/gmail.com/ServiceLogin?service=mail&passive=true&rm=false&continue=https://mail.google.com/mail/mail/?view%3Dcm%26fs%3D1%26tf%3D1%26to%3Dkavyasree.mareedu@gmail.com%26bcc%3Demailtosalesforce@8-1owc82hg2n80ydee55rvjxkh6hge0jck2xrhmkqb5ndeaa4103.6f-2zhccuak.ap4.le.salesforce.com&ltmpl=default&ltmplcache=2&emr=1&osid=1#)

Server Error. How to fix this????

I want to develop a button in my page. Let's say that button name is "Print". When you click on that "Print" button it should print the page in a PPT / PDF format. 

I want your inputs to get an idea about this. I really don't know where to start and how to start. Can you guys help me?