This programs jams when it executes "gyro.begin()" Solution?

This programs jams when it executes "gyro.begin()" Is there a solution?

int Segment, n, Compare;
double ANGLE                 [100];
double DISTANCE              [100] ;
double XX                    [100] ;
double YY                    [100] ;
double Correlation           [20 ] = {1,9,2,8,3,7,2,6,5};
double Sorted_Correlation    [20 ] = {1,2,2,3,7,8,9,5,6};
bool   Matched               [20 ] = {0,0,0,0,0,0,0,0,0};
int    Backward_Index        [20 ] = {1,1,1,1,1,1,1,1,1};
double rotation, newangle, oldangle;
int Creatures = 7;
bool Searching = 1;
double angle_rad = PI / 180.;
double angle_deg = 180.0 / PI;
double speed;
double Distance;
int x, count=1, size_of_array=0, Segment0, MinPower ;
boolean Left = 1, Turning, Confident ;


void setup() {
  //Set Pwm 8KHz
  TCCR1A = _BV(WGM10);
  TCCR1B = _BV(CS11) | _BV(WGM12);
  TCCR2A = _BV(WGM21) | _BV(WGM20);
  TCCR2B = _BV(CS21);


  int n = 6,k, temp, Heading ;
  REAL x ;
  REAL y;
  REAL m,b,r;

  Serial.begin(9600);
  Serial.println(" \n");
  Serial.println("Room_Map.ino") ;
  Serial.println("Start Setuuuup");
  gyro.begin();
  Serial.println("asdfasf");

And the output is:

Room_Map.ino
Start Setuuuup