Hello:
I have a problem with your paid extension for Community Builder:
Everything works correctly except when a user wants to update to a top plan.
Of that time I receive a message of Joomla system who says Id. not found.
I use also a web of tests in localhost. In this local web the problem has been solved by this configuration:
Custom non-SEF variables: pluginclass?user
Nevertheless with this configuration the problem persists in public host.
Can it help me?
Thank you.

(I have not very clear if I use this forum: I bought your payment extension for Community Builder)
Site: www.instrumentosyluthiers.com
Thank you

Joomla! 2.5.17
joomSEF: v 4.5.1
ext. Artio CB: v 3.0.2
CB: v 1.9.1
CB Paid Subscriptions: v 3.0.0