oh, I have got a dedicated IP before, sorry I didn't mentioned it, thanks for the new one !
I have got a crt for my old domain lifent.heliohost.org
but now I want to use lifent.info(I have parked to heliohost) with ssl, I find in the browser that the crt with lifent.info not changed, it's still the old domain, I want the site crt change to my new domain, which I have installed crt with it .
maybe I just should wait for your server rebooting, then it will take effect.