Event Icon Swaps One League

Good Evening. I'm playing the event and at the end of the match the following message appears: "We were unable to process your request and you will be leaving Ultimate Team." However, when I re-enter Ultimate Team it says the match wasn't finished, even though I played the entire match. Could you please resolve this, as I'm missing 1 token and would like to do so? By the way, I have a good internet connection, as I checked your website and it has a rating of 92 out of 100. And i tried more than once doing the event but always the same messages. Regards