Multiple environments crash

Unity Obstacle Tower Challenge
#1

Hi everyone,
any reason why it might causes a crash

2019-03-01%2014-57-47%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE
2019-03-01 14-57-47屏幕截图.png859×664 117 KB
2019-03-01%2014-58-10%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE
2019-03-01 14-58-10屏幕截图.png858×685 88.2 KB