Math Problem Logged Me Out

I am most times logged in and never have to login many times.

This math problem appeared and now I cannot login, my users cannot login.

It may be a nice feature but not nice when it’s a surprise. And then something causes it to just loop me back to the home page.

I suppose the only way to get back in is to delete Jetpack from CPanel.

https://wordpress.org/plugins/jetpack/