If you find a bug or suspect something on the Meetup site is broken, please let us know. You can reach us through our contact form, or through Twitter @Meetup_Support.
We'll review your report, and notify the HQ engineers and developers who can fix the trouble. They'll take care of it as soon as they possibly can.
We may also be working on it. You can review the list of known issues below to confirm if we're aware of the problem already.