Title: W3 Total Cache Error: Can't read file /var../../config/master.php
Last modified: August 21, 2016

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# W3 Total Cache Error: Can't read file /var../../config/master.php

 *  [sagarrao](https://wordpress.org/support/users/sagarrao/)
 * (@sagarrao)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/w3-total-cache-error-cant-read-file-varconfigmasterphp/)
 * I’m running into an error message with w3 total Cache plugin. The error message
   says W3 Total Cache Error: Can’t read file /var/www/dws/wp-content/cache/config/
   master.php. Remove it manually.
    This is the second time I had this issue. First
   time when I found this error, I couldn’t find a solution so I had to re-install
   everything including wordpress. Any Idea why I’m getting this error? I’m also
   running into another issue with uploading files.It says “Image” has failed to
   upload due to an error Failed to write file to disk. I think it has something
   to do with W3 error above. Last time also I had these two errors the lead me 
   to re-install everything. I’ve checked the directory permissions, It does have
   write access and it was working fine until last week. Any help to fix the problem
   would be greatly appreciated.
 * [http://wordpress.org/plugins/w3-total-cache/](http://wordpress.org/plugins/w3-total-cache/)

Viewing 1 replies (of 1 total)

 *  Thread Starter [sagarrao](https://wordpress.org/support/users/sagarrao/)
 * (@sagarrao)
 * [12 years, 7 months ago](https://wordpress.org/support/topic/w3-total-cache-error-cant-read-file-varconfigmasterphp/#post-4111546)
 * I found the problem with uploading files. I’ve installed WordPress on Amazon 
   Ec2 instance and I found that the root device is full so it’s not letting me 
   add\upload files. I’ve increased the root device size and the upload is working
   fine now.

Viewing 1 replies (of 1 total)

The topic ‘W3 Total Cache Error: Can't read file /var../../config/master.php’ is
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 * 1 reply
 * 1 participant
 * Last reply from: [sagarrao](https://wordpress.org/support/users/sagarrao/)
 * Last activity: [12 years, 7 months ago](https://wordpress.org/support/topic/w3-total-cache-error-cant-read-file-varconfigmasterphp/#post-4111546)
 * Status: not resolved