8.1.0-6U What's Problem Firmware

guys i need your help

im just buy sky3ds 3 days ago, now i want to try use regionthree, but what i got??

i kicked out from browser & error message appears

my firmware is 8.1.0-6U

updated when i play super smash bros

i've searching for solution but no answer for my problem

can you guys help me
thank you