Your tablet might not have flash on it.
If you want to ask a question, you are welcome to begin another thread.
However, to answer your query. You can advance in rank by gaining rep. You can get get rep from defeating other players in the wilds and arena and playing events such as Baal/Cerberus and ragnorok.
To upgrade your rank press the yellow button in your avatar window.
Forum Moderators are volunteers and are unable to fix in game problems