fix timer

GAME/src/GAME.c

GAME/src/level_1.c

GAME/src/level_10.c

GAME/src/level_2.c

GAME/src/level_3.c

GAME/src/level_4.c

GAME/src/level_5.c

GAME/src/level_6.c

GAME/src/level_7.c

GAME/src/level_8.c

GAME/src/level_9.c

GAME/src/timer.c