Her Instagram post, translated in the link:
“Come on settlers, we will slaughter you. We are waiting for you in all the cities of the West Bank. What Hitler did to you was a picnic. We will drink your blood and eat your skulls”
She has since been arrested:
JPost is heavily biased, but they linked primary sources that upon review do indeed check out.
Where did you read she was executed? That would be an extreme escalation.