Slide in pluging send me to

I just install the slide in pluging. I use my mailchip key and now when the slide appears, when I try to put my email address to test the subscription service,in the second I make a click in the space for the emial adress it send me to, I can´t even write the email in the form.

My site is you can check for yourselfs.

I just don´t get this, is this my fault or just what is happening here?