Cannot access cloud9 on BeagleBone

[Ichrak Mansour]

I'm beginner with BeagleBone and I need to develop on cloud9 with my Beaglebone Green, on the first,  these addresses 192.168.7.2 and 192.168.7.2:3000/ide.html work well, but suddenly nothing is shown in the browser, still there is no access to these addresses but the cloud9 folder exists. I do not know how to reset it or to work these addresses. 

Any help would be greatly appreciated.

Thanks.