A guild member can not progress in Overseer. She failed the first tutorial and now gets No Offered Quests are Available at this time.
She'll likely need to petition as it sounds like the bug with the success chance affected her, so they will likely have to go in and reset it or something.
Are their tabs similar to this?: The day Overseer was available on Test I did a quest there and this was the result. As far as I can tell there is no way to make anything available. (I just logged into Test and all of the windows are still the same so as Xianzu pointed out it'll probably take some DPG intervention to get it corrected.
How did she fail the first quest? Abandon it or something? It should be impossible to fail. But yeah, definitely have her petition.
It should be impossible to fail the tutorial quests. I'm creating an internal task to look into this. For anyone seeing this (a failed tutorial quest preventing getting the rest), can you please reply here (or shoot me a PM) with your server name and character name?