link to accept non-Account Request breaks+example

Clicking on "give John Three an account" on http://fortbraggcompost.wagn.org/wagn/John_Three gets http://wagn.hoptoadapp.com/errors/4313391 = NoMethodError: undefined method `[]' for nil:NilClass

The direct link is http://fortbraggcompost.wagn.org/account/accept/John_Three