title: Opencart Errors
body: <p>I am having issues with my Opencart shop (version 2.0). I have not made any changes in a few days and my hosting company don't work weekends... and something always seems to go wrong on weekends.</p>
  
  <p>When I try to log in to my admin panel I get this error:</p>
  
  <blockquote>
    <p>Warning: session_start():
    open(/tmp/sess_6944b43ff0351f3609154764b353ba7c, O_RDWR) failed:
    Permission denied (13) in
    /home/thespace/public_html/system/library/session.php on line
    23Warning: session_start(): Cannot send session cache limiter -
    headers already sent (output started at
    /home/thespace/public_html/admin/index.php:165) in
    /home/thespace/public_html/system/library/session.php on line 23</p>
  </blockquote>
  
  <p>The front end of the website works with the exception of the checkout... It gives me this error when trying to access it:</p>
  
  <blockquote>
    <p>Warning: session_start():
    open(/tmp/sess_6944b43ff0351f3609154764b353ba7c, O_RDWR) failed:
    Permission denied (13) in
    /home/thespace/public_html/system/library/session.php on line
    23Warning: session_start(): Cannot send session cache limiter -
    headers already sent (output started at
    /home/thespace/public_html/index.php:207) in
    /home/thespace/public_html/system/library/session.php on line
    23Warning: Cannot modify header information - headers already sent by
    (output started at /home/thespace/public_html/index.php:207) in
    /home/thespace/public_html/vqmod/vqcache/vq2-system_engine_controller.php
    on line 28Warning: Cannot modify header information - headers already
    sent by (output started at /home/thespace/public_html/index.php:207)
    in
    /home/thespace/public_html/vqmod/vqcache/vq2-system_engine_controller.php
    on line 29</p>
    
    <p>Fatal error: Call to a member function get() on a non-object in
    /home/thespace/public_html/index.php on line 205</p>
  </blockquote>
  
  <p>I have tried googling the issue but can't seem to find a resolve. I did notice that there was no public_html/vqmod/vqcache/vq2-system_engine_controller.php file in my vqcache and I've tried restoring an old backup of the site but that hasn't worked either!</p>
  
  <p>Really need help with this.</p>