Github problem

I've set up a project with github support.
Then i added my github account in the phpstorm settings and the test was ok.

But i'm not able to push the files

I'm getting this error:

Pushing to git@github.com:ragtek/mybbaddons.git
SSH: authentication methods: [publickey, keyboard-interactive, password] last successful method:
java.io.IOException: Authentication failed:
    at org.jetbrains.git4idea.ssh.SSHMain.authenticate(SSHMain.java:280)
    at org.jetbrains.git4idea.ssh.SSHMain.start(SSHMain.java:155)
    at org.jetbrains.git4idea.ssh.SSHMain.main(SSHMain.java:135)
fatal: The remote end hung up unexpectedly