Yes there seem to be problems with some browsers and the alliance invites.
The circled 1 means an invite I am fairly sure
So try this. Look up the leaders stats.
And their Alliance name is clickable from their stats page.
That should take you to the alliance page:
And if you have been invited there should be a join button somewhere around where my arrow is pointing.
If there are other settings it might say apply? I am not entirely sure on that.
Other tips. Look up the alliance in the ranking tab instead of the alliance tab, sometimes you can get in that way. Occasionally you have to open the alliance above it and then try the alliance you want to get it to open.
Good luck.
