HI folks,
The generic error message here is a known issue. In most cases it seems the verify link has inadvertently been used more than once, but our generic error message doesn’t differentiate between “already verified” and “other error” at the moment–it definitely should do at least that and I know this is frustrating from a user perspective.
There are several open issues related to this, but no ETA for a fix right now. Please chime in here if you’re affected by this and I’ll use the responses to raise visibility internally.
Thanks,
Matt