Open Invites page viewed on iPad

For some reason can't view or select the green buttons on the extreme right-hand side in either portrait or landscape screen formats. There seems to be a lot of redundant white space on this page, particularly between the 'Game Name' and 'Info Box' columns. Can it be reformatted?
Thanks,
FW

Open invites not working on PC either - Windows 8.1 (tried Chrome 38 and IE 11)

Simply no way to accept invitations...