login brokes theme

Hello,
i am Using WP Custom register login 2.0.0, and the twenty ten theme.

my problem is:
if i activate the WP Custom register Login plugin, all widgets and menubars of the theme, will be moved into the right.

can you help me to fix it?

sorry for my bad english, and the bad spelling

and thanks for help

alcraft

https://ww.wp.xz.cn/plugins/wp-custom-register-login/