Obviously the referee was bribed - you lost the game because of free throws. ;)
Your only reaction should be to come back stronger and be more successful next year.
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular