Kryonet client disconects from server after sending array

Newbie & Debugging Questions
#1

Hey everyone, when my server sends 2d int array to client it stops receiving any more packets.

  static int[][] getMapToSend(Location){
        int[][] a = new int[40][40];
        
        int x1 = 0,y1 = 0;
        
                    for(int i = l.x-20;i<l.x+20;i++){
                        for(int j = l.y-20;j<l.y+20;j++){
                    if(!ServerState.chunkLoaded(l.x, l.y)){
                         a[x1][y1] = ServerState.loadChunk(i, j).tiles[i%100][j%100];
                    }else{
                         a[x1][y1] = ServerState.getChunk(i,j).tiles[i%100][j%100];
                    }
                            
                            x1+=1;
                        }
                        y1+=1;
                        x1=0;
                    }
        
                    
                   
        return a;
    }
    static void sendMap(Player p,Location l,Connection c){  
                    int[][] mapToSend = getMapToSend(l);
                    server.sendToTCP(c.getID(), mapToSend);
    }

Here are the loadChunk and getChunk methods

    
static Chunk[][] map = new Chunk[200][200];

public static Chunk loadChunk(int x,int y){
          int[][] a = new int[100][100];
   BufferedReader br = null;
   File f = new File("gamestate/map_"+x/100+"_"+y/100+".txt");
   if(!f.exists()){
              try {
                  f.createNewFile();
              } catch (IOException ex) {
                  Logger.getLogger(ServerState.class.getName()).log(Level.SEVERE, null, ex);
              }
             
writeArrayToFile(map_template, "gamestate/map_"+x/100+"_"+y/100+".txt");
   }
        try {
            br = new BufferedReader(new FileReader("gamestate/map_"+x/100+"_"+y/100+".txt"));
        } catch (FileNotFoundException ex) {}
try {
   for (int i = 0; i <100; i++) {
        String[] st = br.readLine().trim().split(" ");
        for (int j = 0;j < 100; j++) {
            a[i][j] = Integer.parseInt(st[i]);
        }
        
   }
      } catch (IOException ex) {}
   Chunk c = new Chunk();
   c.tiles=a;
   c.x=x/100;
   c.y=y/100;
   return c;
    }
    public static Chunk getChunk(int x,int y){
        return map[x/100][y/100];
    }

Also Chunk class is basically a 2d 100x100 int array with coordinates.

If I would send an emty array instead I would get java.nio.BufferOverflowException on server side and ofc client still disconnects.
Please say if I forgot to add some information. Kryonet seems to be configured normally and everything else works.