Go to http://www.linkedin.com and log in.
Go to Me > Settings and Privacy
Choose the Account tab
Click Partners and Services on the left hand side.
Click on Permitted Services to see what companies you are allowing to access your information. There should be one there called Zerista Inc. Click the remove link on the right to break the link, and then please try linking again from your account in the app or on our website.
Log in to twitter at http://www.twitter.com and log in.
Click on your profile icon in the top right hand corner, then select Settings and Privacy:
Apps and Devices on the left column
Revoke access for Zerista Inc., then try reconnecting from our app or website.