"the application operette4$2dhfi has |
attempted to open a location inside the firewall and outside the
firewall which is not allowed by IT policy".
Dub is right (of course)..... See Remove IT Policy - BlackBerryFAQ
Also, that 7290 is ancient, in the world of blackberrys. Did you verify that the version of Opera Mini you will be trying to run will work on the 7290? I don't know. Just asking.