Hi, I need some help!
My ESTA was approved in August 2017. I was traveling to the United States from September 27, 2017 until December 10, 2017 when I returned to Spain.
On January 18, 2018, I wanted to go to the United States for a week. At the Barcelona airport when I went to get my ticket for boarding they told me that I could not travel, because my ESTA was showing "unauthorized trip". Does anyone know the possible causes? Will it be approved again? Should I try to get a new one in a few months? I have not done anything out of the legal. I do not understand what happened.