If VMWare Workstation is crashing regularly at random intervals for you, and when it does you see an error indicating the AMD Driver has stopped working and has recovered, this is likely a problem with your graphics driver.
Make sure your graphics driver is up to date. An update may fix the problem.
If the problem persists, you can try uninstalling it and reinstalling it from scratch.
If the problem still persists, you can try disabling 3D acceleration under the display settings (make sure you power off the VM before you change this setting).
If none of the above strategies resolve the problem, try switching to the VirtualBox software the VirtualBox VM: it may work better for you on your particular machine.