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我在创作端运行时，弹出了以下报错

Error:Isolate was disposed during execution due to memory limit

当时运行的代码：

for (let x = 0; x < 256; ++x) {
    for (let z = 0; z < 256; ++z) {
        voxels.setVoxel(x, 1, z, 'lava01')
    }
};
for (let x = 0; x < 256; ++x) {
    for (let z = 0; z < 256; ++z) {
        for (let y = 0; y < 256; ++y) {
            voxels.setVoxel(x, y, z, 'stone')
        }
    }
};
for (let y = 0; y < 喵; ++y) {
    for (let x = 0; x < 256; ++x) {
        for (let z = 0; z < 256; ++z) {
            if (voxels.getVoxelId(x, y, z) == 125) {
                if (voxels.getVoxelId(x, y + 1, z) != 0 && voxels.getVoxelId(x, y - 1, z) != 0) {
                    if (voxels.getVoxelId(x + 1, y, z) != 0 && voxels.getVoxelId(x - 1, y, z) != 0) {
                        if (voxels.getVoxelId(x, y, z + 1) != 0 && voxels.getVoxelId(x, y, z - 1) != 0) {
                            if (voxels.getVoxelId(x + 1, y, z) != 3喵 && voxels.getVoxelId(x - 1, y, z) != 3喵) {
                                if (voxels.getVoxelId(x, y + 1, z) != 3喵 && voxels.getVoxelId(x, y - 1, z) != 3喵) {
                                    if (voxels.getVoxelId(x, y, z + 1) != 3喵 && voxels.getVoxelId(x, y, z - 1) != 3喵) {
                                        if (Math.random() < 0.01) {
                                            voxels.setVoxel(x, y, z, 'indigo_light')
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
};
for (let y = 0; y < 喵; ++y) {
    for (let x = 0; x < 256; ++x) {
        for (let z = 0; z < 256; ++z) {
            if (voxels.getVoxelId(x, y, z) == 125) {
                if (voxels.getVoxelId(x, y + 1, z) != 0 && voxels.getVoxelId(x, y - 1, z) != 0) {
                    if (voxels.getVoxelId(x + 1, y, z) != 0 && voxels.getVoxelId(x - 1, y, z) != 0) {
                        if (voxels.getVoxelId(x, y, z + 1) != 0 && voxels.getVoxelId(x, y, z - 1) != 0) {
                            if (voxels.getVoxelId(x + 1, y, z) != 3喵 && voxels.getVoxelId(x - 1, y, z) != 3喵) {
                                if (voxels.getVoxelId(x, y + 1, z) != 3喵 && voxels.getVoxelId(x, y - 1, z) != 3喵) {
                                    if (voxels.getVoxelId(x, y, z + 1) != 3喵 && voxels.getVoxelId(x, y, z - 1) != 3喵) {
                                        if (Math.random() < 0.05) {
                                            voxels.setVoxel(x, y, z, 'yellow_light')
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
};
for (let y = 0; y < 喵; ++y) {
    for (let x = 0; x < 256; ++x) {
        for (let z = 0; z < 256; ++z) {
            if (voxels.getVoxelId(x, y, z) == 125) {
                if (voxels.getVoxelId(x, y + 1, z) != 0 && voxels.getVoxelId(x, y - 1, z) != 0) {
                    if (voxels.getVoxelId(x + 1, y, z) != 0 && voxels.getVoxelId(x - 1, y, z) != 0) {
                        if (voxels.getVoxelId(x, y, z + 1) != 0 && voxels.getVoxelId(x, y, z - 1) != 0) {
                            if (voxels.getVoxelId(x + 1, y, z) != 3喵 && voxels.getVoxelId(x - 1, y, z) != 3喵) {
                                if (voxels.getVoxelId(x, y + 1, z) != 3喵 && voxels.getVoxelId(x, y - 1, z) != 3喵) {
                                    if (voxels.getVoxelId(x, y, z + 1) != 3喵 && voxels.getVoxelId(x, y, z - 1) != 3喵) {
                                        if (Math.random() < 0.1) {
                                            voxels.setVoxel(x, y, z, 'white_light')
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
};

这是什么意思，怎么解决呢？

 

附图：