Sometimes arbor doesn't let you log in when you click 'Log in with Google'. This issue is being looked at by Arbor, but in the meantime there is a quick fix.
Click on the padlock symbol next to the address bar in Chrome.
Select Cookies
Select each cookie ending in arbor.sc and click remove. There are usually three of them.
You should now be able to log into arbor again using 'Log in with Google'
A full PDF guide with screenshots is available below
