How do i Sign in on my email on my boostmobile rant?

i want to sign in under (messaging) it keeps on saying i have an invalid password and email. I signed in before but my brother push the remove account button.|||Go to Messaging and then down to email and make sure you enter your email and password correctly and then it should connect no problem unless Boost's service is down. You can always call them and tell them the situation too.