Same error happened to me, till I found help on Opera Mini forum ...
In my case, the problem lies in T-Mobile Data Network Setting ...
If you're using T-Mobile, instead of port 9201, use port 8080 ...
If you're using other provider, I really have no idea
Besides the speed, the feature of Opera Mini is unbeatable, easy bookmarking tool, easy history access, 4-5 size options in downloading images, changeable skins, etc ...