Starting from https://www.geni.com/requests if we click on "Sent", the URL is https://www.geni.com/requests/sent which was very useful to find sent but not yet accepted invitations. It was possible to click Remind for reminders to be sent (and to cancel if there was a typo in the e-mail address).
The last few days the page https://www.geni.com/requests/sent is missing! Only the below error is displayed.