Possession is not everything.
Your opponent were more acurate (3 shots, 3 shots on goal, you missed one) adn you lost in a free kick situation.
You had the ball, but it doesn't say where you had the ball..... having 6 players in the defensive line (plus the GK) i can only asume you weren't aggressive or it wasn't enough.
And another thing: You were better closing down, marking and movement, only one trait can be consdered offensive.
In other words, i believe you had the ball too much, didn't attack enough times, closed your goal very well but lost in a FK situation, it happens in real life...... most times a match closed is decided in a set piece situation after all.