Great, thank you for posting back your history, very helpful!
It turns out that the tool you are trying to use (the Phyloseq interactive environment) is a bit new, and the configuration currently has a problem at UseGalaxy.org.
Symptoms include the environment “never launching”, and it will eventually fail (turn “red” in the history).
Tracking ticket.
We expect to have that corrected some time next week. You don’t need to wait!
That ticket includes instructions for moving data around between Galaxy servers. UseGalaxy.eu is a good alternative. You can create and have an account at each of the servers to take advantage of the extra data storage space.
Thanks for reporting the problem with all the followup! 