Jetpack Problems

I have issue with plugin JetPack for Wordpress.
As your theme recomend to install jetpack - I did, and connected it to my Wordpress acount and after that there is blank website. When I am turning off Jetpack my website works, but activateing Jetpack makes website not working.

Hello there,

I hope you are doing well today.

Please ensure that you have installed all pending updates and the most recent version of WordPress via Dashboard > Updates.

Also, you may need to contact your hosting provider and have them check to ensure you have PHP version 5.6 or greater.

Best Regards,