Any idea what might be wrong?
ActionView::Template::Error (undefined method `+@' for #<ActionView::OutputBuffer:0x00000002e51580>):
Check for a typo error in your views, have you typed ‘+’ in front of any instance variable on your view or controller? check it 
Show us the section of your code that is triggering the error and the full stack trace please.
Colin
You should have added space beteween @ and the variable name.