Unhappy phone can't root if use custom rom ?

Hey . Im new member. I join xda to asking this problem and increase my knowledge
Im using galaxy y gt-s5360 and custom rom miui v.3build3. Before im flashing the rom i was root my phone.
When im using seeder and battery calibration i have notification my phone is not rooted.
And when i root my phone on the rom i can't root my phone. Show error E:error ini /sdcard/update.zip operation aborted. (Error in 7)
So anyone can help me to fix this problem?


Sorry bad english im from indonesia. .