Hi,

I think you are here to receive and send invites, but as you know there are rules to control sending invite from tracker itself.

BTW private trackers are types, and you would expose to this phrase, like, nexus-based, unit3d-based etc..

If you are on unit3d-based, they set up something which make you NOT able to send invite until you made it, this is why for safety.

What we talk about today is what called "two-factor authentication key" they give you a QR code and you MUST scan with your phone, btw it`s NOT normal QR code, you must scan it with 2fa app, I think google authenticator is much popular to do this as I mentioned it in my last posts.

Code expires after 30 seconds from application, you should enable feature before it expired.