include_once failed to open stream: No such file or directory - Wordpress
<p>just a newbie question to but I don't know what to do with this error.</p>

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<blockquote>
  <p>Warning:
  include_once(/home/u320415047/public_html/wp-content/themes/thestore/lib/thestore-metaboxes.php):
  failed to open stream: No such file or directory in
  /home/u320415047/public_html/wp-content/themes/thestore/functions.php
  on line 8</p>
  
  <p>Warning: include_once(): Failed opening
  '/home/u320415047/public_html/wp-content/themes/thestore/lib/thestore-metaboxes.php'
  for inclusion (include_path='.:/opt/php-5.5/pear') in
  /home/u320415047/public_html/wp-content/themes/thestore/functions.php
  on line 8</p>
  
  <p>Warning:
  include_once(/home/u320415047/public_html/wp-content/themes/thestore/lib/custom-config.php):
  failed to open stream: No such file or directory in
  /home/u320415047/public_html/wp-content/themes/thestore/functions.php
  on line 9</p>
  
  <p>Warning: include_once(): Failed opening
  '/home/u320415047/public_html/wp-content/themes/thestore/lib/custom-config.php'
  for inclusion (include_path='.:/opt/php-5.5/pear') in
  /home/u320415047/public_html/wp-content/themes/thestore/functions.php
  on line 9</p>
</blockquote>