UBUNTU not loading?

Question

linux

I left the computer and UBUNTU went into sleep mode. After that, he “woke up” her and tried to log in, but the system hung tightly. I turned it off with the POWER button on the laptop and tried to turn it on again, but now it gives an error system changes .pp link was shut down. She does not respond to the keyboard, only the numpad turns on / turns on, how to ask for an error? Perhaps this is due to the fact that I removed the xorg package (reinstalled playonlinux and could confuse xterm and xorg)