This wikiHow teaches you how to allow website cookies with Safari on your iPad so that they are no longer blocked.
Steps

Step #1. Open Settings on your iPad
Find and tap it

icon on your home screen to open the Settings menu.

Step #2. Scroll down and tap on Safari
It's about in the middle of your Settings menu.

Step 3. Look for the heading PRIVACY & SECURITY
Here are the privacy and security options of your internet browser.

Step 4. Slide the switch next to Block all cookies nasty
This option is at the top of the PRIVACY & SECURITY section. When disabled, your iPad stores cookies to identify and track your access to web pages.