Why was Invite removed from my home site? I am the moderator and had to add my other e mail address to the li

My normal Yahoo address was being blocked due to Unusual Activity Detected, reason unknown. I needed to get my group messages, so I added myself as a new member on my gmail address. Now my home site no longer shows Invite, so I can't invite new applicants to join our group. I need my original items back on my home site as I have several people waiting to join.