Cannot Join Mautic Slack

Cannot join mautic slack
I get an error message saying there was an error sending me the invite

Hey @pedrohqalves sorry about that! Just above it says to use this link if you get stuck:

https://mau.tc/slack-invite

We have had a problem with that Slack invite Drupal block since a recent update and unfortunately we have not yet been able to resolve the problem.