Sorry, there's a bit of a "tech lag" for me too.... you may have found that there were apparently empty slots but you were unable to register for them. I've (hopefully) corrected that, and you should be able to register. Give it a try!
If you continue having troubles, please contact me by email or text and I'll try to sort it out!
Also... Zoom is upping their security and is now requiring a password. Check your email for the password!