Recruit Outlook Plug-in 'Incorrect email address or password'

Recruit Outlook Plug-in 'Incorrect email address or password'

I have successfullu installed ZoHo Recruit plug-in to my Outlook 2013 (although, peversely, I had to install the 32 bit version on my 64 bit machine because the 64 bit version failed the install - why?). When I try to sign in to Zoho Recruit from Outlook I get the error message 'Incorrect email address or password'. I've tried re-installing the plug-in but get the same error. Thanks