Lost all blog subscribers with Jetpack

Hello there,
Something strange just happened to my website, i lost all my blog followers in a second.

Im using Jetpack for some months, it took 6 months to gather those subscribers and now i see “0 followers”.

I didn’t write any article for some days, i didn’t install nor update any plugins.
Any idea on how i can get my followers back ?
Thanks in advance

http://wordpress.org/plugins/jetpack/