Maybe an error with connecting? Either ensure you set up wifi or disable tubehax. Make sure your wifi switch is on.
Your browser doesn't look blocked, because you already managed to get it to run. Do you have another hacked 3ds and an OoT/CN game cart? You could try that instead if you keep having issues.
its prolly saying sumthing about u need to update before u can use browser or an error has occured they added that in 9.9+ you will need to use Ocarina of Time hax(will need some way of getting save on cart) or ninjahax.