Hi!
It appears that my account is causing a null pointer exception under the validateUserCustomer function at line 542.
Possible causes may have been the creation and cancellation of a AdSense (YouTube) account, creation and cancellation of multiple AdWords accounts, and changing the administrator on AdWords accounts from my current account (the account which originally created the AdWords accounts) to a secondary account.
This doesn't seem to be an isoltaed issue either:
If anybody could look into this (and save me from the horrors of XKCD 806!), that would be most appreciated.
Kind regards,
Kelvin