Workspace is crashing

My workspace is not working correctly. It is showing this problem.

Due to this i am not able to access args[1] which is supposed to be end date passed through terminal.
This issue has been appearing for a quite while now, for earlier cases i just closed workspace and opened workspace again after few hours then it works fine. I also tried hard refresh but it does not work.
Please look into it.
Another screenshot:

I just saw your workspace, it is working fine.
As for the command that you are executing. There is some error in your code. I also saw an exception. I’m referring you an FAQ link for that, please go through that FAQ to avoid that particular exception.

There is some error in your code. Please read the stacktrace carefully. You will understand which line is causing the build failure. Let me know if the FAQ link was helpful for your exception or not.