title: Virtual Box: Critical error while running the virtual machine
body: <p>I use a VirtualBox machine as a local web server (this is an Open Suse VM). But for a few days, problems occurs with my VM. </p>
  
  <p>First, I can't delete my oldest snapshot, the reason is:</p>
  
  <pre><code>Result Code: NS_RROR_FAILURE (0x80004005)
  Component:   SessionMachine
  Interface:   IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048}
  </code></pre>
  
  <p>Another issue came today:</p>
  
  <pre><code>VirtualBox - Guru Meditation
  
  A critical error has occurred while running the virtual machine and machine
  execution has been stopped.
  
  [...]
  
  Press OK if you want to power off the machine of press Ignore if you want
  to leave it as for debugging. Please note that debugging requires special
  knowledge and tools, so it is recommended to press OK now.
  </code></pre>
  
  <p>It's pretty painful, because, it's the third time it happens, and I can't work on my web server...</p>
  
  <p><a href="http://www.datafilehost.com/d/d9c7f324" rel="noreferrer">Here is the link to the VirtualBox log file</a></p>
  
  <p>Note that, I just upgraded my Lubuntu from 12.10 to 14.04 (I got problems during this upgrade -- blank screen when I was booting, but I fixed them). Open Suse is running on my VM, and I use Interbase, PHP, Apache. The first time the issue happened, I was using Netbeans, then it was when I was using Kwrite. I previously got many networks problems with this VM (it's the reason why I take snapshots to avoid rebooting).</p>
  
  <p>Why am I receiving critical errors when attempting to run the virtual machine?</p>