I rooted my Vodafone Ultra 6 but can't remove Bloatware

[AC Question]

Hi.

I recently rooted my Vodafone smart ultra 6 so I could remove the bloatware but when I try to uninstall it kingroot or any other root uninstaller on google play it doesn't work!

I then usually get a display error and have to turn off the phone.. I then have to root it again and everything is default!

What should I do to remove these annoying useless applications?

Thanks.