Could you give me more details about your issue? Did your site completely disappear now that you’ve removed Jetpack, or did you only lose your Jetpack settings?
If you only lost your Jetpack settings, you can add Jetpack back and connect it back to your WordPress.com account. Once you’ve done so, your stats and subscribers will be back.
If you don’t get your stats back, could you post your site URL here so I can have a look at your Jetpack settings?
If you want it to remain private, you can also contact us via this contact form:
https://jetpack.me/contact-support/
If you still can’t access your site or your admin panel, you’ll need to find out what’s blocking you from accessing your dashboard. If you see a “white screen of death” instead of the log in form to access your dashboard, you can follow the instructions here to get the problem fixed:
https://codex.www.ads-software.com/Common_WordPress_Errors#The_White_Screen_of_Death
I hope this helps.