General problems in template need to be fixed

Hello

I have a website which needs help.

When you go to my site their is a few erros which need sorting out first issue is.

The seach box does not work at all is just an image top right hand corner which needs repairing asap.

on the hompage near the bottom their is this little white space which shouldnt be their but needs removing which should be simple.

Configure my ssl security certificate in opencart 1.50.

Can anyone help me at all and get this sorted asap.

Thanks