If you were supposed to get an email from the forum but didn't (e.g. to verify your account for registration), email Wes at stararmy@gmail.com or talk to me on Discord for help. Sometimes the server hits our limit of emails we can send per hour.
Are you sure? I just tested it and it seems to work OK still. I also checked on the server and it says the link is still valid and working (and has been used over 300 times!)
I've changed the link back to the original one due to complaints about the new one being temporary.
Upon further investigation I believe that the reason the invite wasn't working for you was that the ban list included someone with a similar IP address.