Why virtual machine stop itself even I am active

All files outside the workspace reset. How we can do it again and again.

Please store your important files inside the workspace directory. So that your progress is saved.
If your workspace is crashing again and again. Please ensure that the 1 GB files you are creating for file transfer are deleted after it’s purpose is over. Creating multiple 1 GB files reduces the disk space in the VM and it crashes because of that.