Hi, @guardianfinancia. Thank you for reaching the Community. 

I want to ensure your concern about accepting invitation gets taken care of. However, I have to ask for some details about the issue. 

May I know what specific error message you’ve encountered when accepting invitation? This way, I can provide you with the best resolution.

I'd appreciate any additional details you can provide. I’m looking forward to your reply. Have a great rest of the day.